AutoCAD 2008 on WinXP (x86)

I've installed (and reinstalled) AutoCAD 2008 on a computer that was recently reformatted with Windows XP x86.  It installs just fine, and seems to activate properly, but upon launching the actual program (either through a shortcut or by clicking a drawing), it flashes the black CAD field, and, upon loading to "command: dashboard", the program will exit without any dialog.  Occasionally, two paired errors will show up in my log, corresponding to one time I've failed to open the program: errors 1030 and 1058.  It would appear that these are related to Windows Group Policy, may be related to DFS, and could have something to do with permissions.

We use AutoCAD to interface with Microvellum, which talks to our shop machines and decodes the CAD drawings for them.

I'm a bit stuck; I've talked with Microvellum's support staff, and we reinstalled and reuninstalled and rereinstalled it, but the same issues seem to pop up.  I've restarted this computer since this problem, but I have not altered or restarted the server.  The gentleman from MV tech support suggested our version of the install me be corrupted somehow, but was unable to furnish a clean download for 08 (it appears most people get their CAD through MV, and that's 07).

Thanks for the help.