WIndows 2003 no icons

I have an issue on a w2k3 sbs server. When I login I get not icons, I cannot even get task mgr to load.
What I've checked.
1) login as differnet user - nothing
2) I can connect RDC but no icons
3) checked services running from another machine and it seems ok
4) checked reg and winlogon looks ok
5) replaced explorer.exe
I haven't tried safe mode because the server is the only one and it's in use at the moment.
Before this happened I couldn't run ad users and comps, and it stated backup exec wasn't installed correctly, but it was before. I just wonder if the exe files aren't opening such as task mgr and explorer, causing it to sit and wait. Other than that all users can login to domain and work on files, but I cannot access the desktop of the server to add anything.
Thanks in advance.
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If you hit Ctrl+Alt+Dlt can you then go to Task Manager?

Then go to New Task.

Type in explorer.exe

Should load the icons
Glen KnightCommented:
do you get a blank desktop? If so can you press CTRL+ALT+DEL and start task manager, end explorer.exe and then menu's choose run and type explorer.exe what happens?

If nothing try doing the same thing again but this time run "cmd" and from the command prompt run sfc /scannow
jdwilliams1Author Commented:
So I should have stated I choose task mgr and nothing happens so I can't load anything. The only way to access this is from another pc. (accessing the registry or services)
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Not that you want to do this, but does rebooting the server temporarily resolve the issue? Or is the desktop still missing?
jdwilliams1Author Commented:
No I rebooted and the same thing. I logged in RDC and same scenario
Glen KnightCommented:
what happens if you boot in to safe mode?
Nicholas IlerIT Technical EngineerCommented:
Try checking the local policies on that system.  I have seen certain malicious code disable the Task manager and other critical administrator tools on our Terminal Servers this way.
Use this tool to check for entries... You have to google the task manager entry setting.  It should be in the computer policy.  I believe this setting as a computer setting would block all users including Enterprise Admin's.
Run -> gpedit.msc
I highly recommend finding downtime and trying safemode. When you log in are you able to get to the start menu and run programs?  You said you replaced explorer.exe...where did you get your "new" copy? Did you run sfc /scannow as Demazter recommended? This process fixes many system file issues like what you are outlining.

Of most importance I would recommend trying to get a backup of this computer immediately as you definitely have some questionable things happening. I wouldn't trust this machine if this were a production machine of the importance you suggest it is. Have a backup plan ready.

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jdwilliams1Author Commented:
Reloaded the opsys
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Windows Server 2003

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