Q:Windows XP spontaneously rebooted while I was playing Toontown.

A:Windows XP crashed, and by default XP is set to reboot itself automatically after an OS crash. You can change this setting under Control Panel->System->Advanced->Startup And Recovery. Because of its design, WinXP can only crash due to a hardware problem (such as bad memory chips) or a device driver problem. Device drivers are the usual suspects. Toontown exercises the video driver heavily, so you will want to make sure you have installed the latest video drivers from your graphics card manufacturer, and the latest motherboard drivers from your PC or motherboard manufacturer (i.e. Dell, HP, Intel, Asus, Via etc).

You can test your RAM memory integrity using a free utility at http://www.memtest86.com.

If none of these things work you should report the failure to your video card and motherboard manufacturer's customer support services.

For programmers and technically advanced users:

By default, after crashes WinXP writes a "minidump" file to C:\Windows\Minidump\mini[date].dmp. Looking at the strings in the file can sometimes give you a clue which driver crashed; for instance, the presence of 'nv4_disp.dll' indicates a crash in the Nvidia video driver. This does not necessary implicate the video driver (the crash could be due to a motherboard driver that the video driver depends on, or bad memory for instance), but it can be a starting point for investigation and driver swapping. You can load a minidump file using the windbg.exe Tool in the "Debugging Tools for Windows" package downloadable from http://msdn.microsoft.com.