Vmware Infrastructure Restarts Host unexpectedly almost every other day

Almost every day my vmware server host restarts unexpectedly.    Windows event log gives me event id: 6008.  Its a power edge 2950 with 16gb ram, Raid5 setup for vmware disks, mirrored drives for OS, Windows 2003 Standard x64. two 4 core xeon processors at 2.33ghz.

Its been giving me trouble for months and i've isolated it to vmware as I had another vmware server and moved all the vmware disks to this new server.  Same problem is occuring.  I know its not windows updates as i checked carefully on my WSUS and server logs.  I have a couple other physical servers in this domain and none of them have this issue. I have been keeping a log of all the start up times which i've listed below.  I was running vmware server 1 for about 2 years and this issue never occured.  Any help would be much appreciated.

System Restart Log
2/9/2011 5:52 AM
2/10/2011 9:37 AM
2/10/2011 5:15 PM
2/12/2011 5:52 AM
2/12/2011 5:35 PM
2/13/2011 3:23 AM
2/13/2011 5:52 AM
2/15/2011 6:45 AM
2/15/2011 5:30 PM
2/16/2011 5:52 AM
2/16/2011 5:47 PM
2/16/2011 10:08 PM
2/17/2011 4:02 AM
2/18/2011 7:16 PM
2/19/2011 4:49 PM
2/21/2011 5:52 AM
2/22/2011 5:52 AM
2/22/2011 6:50 AM
2/23/2011 5:53 AM
2/26/2011 5:52 AM
2/27/2011 9:41 AM
3/2/2011 5:53 AM
3/4/2011 9:25 AM
3/7/2011 5:53 AM
3/8/2011 6:11 PM
3/10/2011 5:53 AM
3/11/2011 5:53 AM
3/13/2011 6:35 PM
3/13/2011 9:02 PM
3/14/2011 6:52 AM
3/14/2011 1:20 PM
3/14/2011 6:25 PM
3/15/2011 6:52 AM
3/16/2011 6:52 AM
3/17/2011 6:52 AM
3/18/2011 6:52 AM
3/18/2011 7:52 AM
3/23/2011 6:52 AM
3/29/2011 10:07 AM
3/30/2011 6:40 AM
3/30/2011 6:52 AM
3/31/2011 9:30 AM
4/2/2011 6:46 AM
4/3/2011 5:52 AM
4/4/2011 5:52 AM
4/4/2011 9:59 AM
4/5/2011 10:20 AM
4/7/2011 9:40 AM
4/12/2011 7:34 PM
4/17/2011 5:52 AM
4/18/2011 6:18 AM
4/18/2011 7:21 AM
4/18/2011 7:26 AM
4/19/2011 1:20 PM
4/20/2011 9:45 AM
4/22/2011 5:52 AM
4/23/2011 8:13 PM
4/27/2011 11:25 AM
4/28/2011 9:30 AM
4/30/2011 12:13 PM
5/4/2011 8:42 AM
5/5/2011 4:58 PM
5/5/2011 7:50 PM
5/7/2011 12:14 PM
5/8/2011 12:13 PM
5/13/2011 10:03 AM