System Reboots! Why?

[ShrinkMD]

I have been reading the threads and tried a few things, to no avail...

My machine loads the movies, and the instant the campaign begins (in tutorial, to start moving the pieces) the machine just reboots. No warning or error messages, it just disappears. The machine reboots fine.

I tried setting the video settings to the lowest, matching the windows and game resolutions. I looked for the two desc.geography files in the data folder (not there). No change in the problem.

I currently have the 1.3 patch installed (I just installed them all from fresh)

My machine is not new, a XP 3000 with 1.5 gb ram, and a Radeon HD3650. The machine has a 380 watt Antec supply, and zero problem playing other intense 3d games, so I don't think it is hardware related (although I saw some obscure posts about optical mouse drivers, etc) People also mentioned reinstalling the game without network or .NET support?

What would be a logical sequence of trying to get this game playing?

Thanks!

[irishron]

There are some things that can do it.

What operating system are you using?
Have you run Microsoft Update and installed all the optional software listed?