VNC Disconnecting

I have Tight VNC installed on a workstation and it disconnects after a few seconds. I installed Real VNC with the same results. I can telnet into the two prts. I reviewed the log and downloaded and installed this http://www.demoforge.com/dfmirage.htm
with the same result. I have other pc's that i can VNC into. I can rdp into the workstation with no issues. there is no firewall. any help?

Wed Feb 25 10:04:48 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:04:53 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:04:58 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:03 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:08 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:13 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:18 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:23 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:28 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:33 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:38 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:41 2009
vncSockConnect.cpp:	accepted connection from 10.40.56.97
vncClient.cpp:	vncClient() executing...
Wed Feb 25 10:05:42 2009
WinVNC.cpp:	message 1026 received
vncServer.cpp:	AddClient() done
vncClient.cpp:	client connected : 10.40.56.97 (id 11)
vncClient.cpp:	negotiated protocol version, RFB 3.8
vncClient.cpp:	performing VNC authentication
i:\svn\tightvnc-1.3\vnc_winsrc\winvnc\vncPasswd.h:	PASSWD : ToText called
i:\svn\tightvnc-1.3\vnc_winsrc\winvnc\vncPasswd.h:	PASSWD : ToText called
Wed Feb 25 10:05:43 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:05:44 2009
WinVNC.cpp:	message 1029 received
vncDesktop.cpp:	initialising desktop server
TsSessions.cpp:	Console session is 4WallpaperUtils.cpp:	KillActiveDesktop
WallpaperUtils.cpp:	Active Desktop not enabled - ignoring
Wed Feb 25 10:05:47 2009
WinVNC.cpp:	message 49343 received
WinVNC.cpp:	message 49353 received
Wed Feb 25 10:05:48 2009
WinVNC.cpp:	message 275 received
Wed Feb 25 10:05:50 2009
vncDesktop.cpp:	KillScreenSaver...
vncDesktop.cpp:	SCR-WBB: current display: w=1024 h=768 bpp=32 vRfrsh=75.
VideoDriver.cpp:	No 'Mirage Driver' or 'DemoForge Mirage Driver' found.
VideoDriver.cpp:	vncVideoDriver::CheckVersion: can't create DC on ""
vncDesktop.cpp:	******** PLEASE INSTALL NEWER VERSION OF MIRAGE DRIVER! ********
VideoDriver.cpp:	vncVideoDriver::MapSharedbuffers: can't create DC on ""
VideoDriver.cpp:	vncVideoDriver::UnMapSharedbuffers failed. unmapping manually
VideoDriver.cpp:	No 'Mirage Driver' or 'DemoForge Mirage Driver' found.
vncDesktop.cpp:	failed to activate video driver interface
vncDesktop.cpp:	source desktop metrics: (0, 0, 1024, 768)
vncDesktop.cpp:	bitmap dimensions are 1024x768
vncDesktop.cpp:	created memory bitmap
vncDesktop.cpp:	got bitmap format
vncDesktop.cpp:	DBG:display context has 1 planes!
vncDesktop.cpp:	DBG:memory context has 1 planes!
vncDesktop.cpp:	attempting to create main and back buffers
vncDesktop.cpp:	enabled fast DIBsection blits OK
vncDesktop.cpp:	DBG:true-color desktop in SetPixShifts()
vncDesktop.cpp:	no palette data for truecolour display
vncBuffer.cpp:	raw encoder requested
vncEncoder.cpp:	SetTranslateFunction called
vncEncoder.cpp:	no translation required
vncBuffer.cpp:	local buffer=3145728, remote buffer=3145740
vncBuffer.cpp:	local buffer=3145728, remote buffer=3145740
vncServer.cpp:	Authenticated() done
vncClient.cpp:	authenticated connection
vncClient.cpp:	sent pixel format to client
vncBuffer.cpp:	SetClientFormat called
vncEncoder.cpp:	SetTranslateFunction called
vncEncoder.cpp:	triple LUT used
vncBuffer.cpp:	local buffer=3145728, remote buffer=1572876
vncClient.cpp:	Full-color cursor shape updates enabled
vncClient.cpp:	NewFBSize protocol extension enabled
vncEncoder.cpp:	Raw encoder stats: data=0, overhead=0, encoded=0, sent=0
vncBuffer.cpp:	unknown encoder requested
vncBuffer.cpp:	Hextile encoder requested
vncEncoder.cpp:	SetTranslateFunction called
vncEncoder.cpp:	triple LUT used
vncBuffer.cpp:	local buffer=3145728, remote buffer=1576061
Wed Feb 25 10:05:51 2009
vncEncoder.cpp:	remote palette data requested
Wed Feb 25 10:05:54 2009
WinVNC.cpp:	message 49343 received
WinVNC.cpp:	message 1027 received
Wed Feb 25 10:05:56 2009
vncService.cpp:	unable to open desktop, error=0
vncService.cpp:	SelectHDESK() to Default (2c) from 2c
vncService.cpp:	SelectHDESK failed to close old desktop 2c, error=170
vncClient.cpp:	client disconnected : 10.40.56.97 (id 11)
vncServer.cpp:	removing authorised client
vncServer.cpp:	deleting desktop server
vncDesktop.cpp:	killing desktop server
vncDesktop.cpp:	quitting desktop server thread
vncService.cpp:	SelectHDESK() to Default (2c) from 2c
vncService.cpp:	SelectHDESK failed to close old desktop 2c, error=170
vncServer.cpp:	RemoveClient() done
vncClient.cpp:	~vncClient() executing...
vncClient.cpp:	deleting socket
VSocket.cpp:	closing socket
vncClient.cpp:	deleting buffer
vncEncoder.cpp:	Hextile encoder stats: data=1576960, overhead=36, encoded=1176261, sent=1176297
vncEncoder.cpp:	Hextile encoder efficiency: 25.407%
vncMenu.cpp:	tray icon updated ok
WinVNC.cpp:	message 795 received
WinVNC.cpp:	message 795 received
WinVNC.cpp:	message 794 received
WinVNC.cpp:	message 794 received
WinVNC.cpp:	message 49353 received
Wed Feb 25 10:05:58 2009
WinVNC.cpp:	message 1028 received
vncMenu.cpp:	tray icon updated ok
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:06:03 2009
vncSockConnect.cpp:	accepted connection from 10.40.56.146
vncClient.cpp:	vncClient() executing...
vncServer.cpp:	AddClient() done
WinVNC.cpp:	message 1026 received
vncClient.cpp:	client connected : 10.40.56.146 (id 11)
vncClient.cpp:	negotiated protocol version, RFB 3.8
vncClient.cpp:	performing VNC authentication
i:\svn\tightvnc-1.3\vnc_winsrc\winvnc\vncPasswd.h:	PASSWD : ToText called
i:\svn\tightvnc-1.3\vnc_winsrc\winvnc\vncPasswd.h:	PASSWD : ToText called
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:06:05 2009
vncDesktop.cpp:	initialising desktop server
WinVNC.cpp:	message 1029 received
WallpaperUtils.cpp:	KillActiveDesktop
vncDesktop.cpp:	KillScreenSaver...
vncDesktop.cpp:	SCR-WBB: current display: w=1024 h=768 bpp=32 vRfrsh=75.
vncService.cpp:	unable to open desktop, error=2
vncService.cpp:	SelectHDESK() to Default (2c) from 2c
vncService.cpp:	SelectHDESK failed to close old desktop 2c, error=170
vncServer.cpp:	failed to initialize desktop object
VSocket.cpp:	closing socket
vncDesktop.cpp:	killing desktop server
vncServer.cpp:	Authenticated() done
vncServer.cpp:	RemoveClient() done
vncClient.cpp:	~vncClient() executing...
vncClient.cpp:	deleting socket
WallpaperUtils.cpp:	Active Desktop not enabled - ignoring
WinVNC.cpp:	message 1027 received
vncMenu.cpp:	tray icon updated ok
WinVNC.cpp:	message 1028 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:06:08 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:06:13 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok
Wed Feb 25 10:06:18 2009
WinVNC.cpp:	message 275 received
vncMenu.cpp:	tray icon updated ok

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