FS9 crashes, restarts computer

Well, after extensive searching, I can't seem to find a solution:
FS9 initially loads, but when I go to select aircraft I get a nasty buffer-type noise blaring out of the speakers and my whole system restarts - I think a bluescreen or something shows up, but it restarts so fast I can't see it.
I haven't added anything to FS since I last used it, which was a few days ago, nor have I changed any system settings:
My system specs are as follows:
AMD Athlon XP 2200+
MSI K7N2G motherboard
nVidia GeForce 4 MX integrated gpu (being replaced with nVidia GeForce FX5500 next week)
512 mb ram (384 system, 128 gpu - again, additional 512mb ram being added next week)
Sound card is not an issue - I never use onboard sound, I use my Edirol UA-5 w/ ASIO drivers
Windows XP SP2
FS9.1
hope that's everything there. Anyways, this problem is disheartening and quite aggravating, any suggestions would be great.
FS9 initially loads, but when I go to select aircraft I get a nasty buffer-type noise blaring out of the speakers and my whole system restarts - I think a bluescreen or something shows up, but it restarts so fast I can't see it.
I haven't added anything to FS since I last used it, which was a few days ago, nor have I changed any system settings:
My system specs are as follows:
AMD Athlon XP 2200+
MSI K7N2G motherboard
nVidia GeForce 4 MX integrated gpu (being replaced with nVidia GeForce FX5500 next week)
512 mb ram (384 system, 128 gpu - again, additional 512mb ram being added next week)
Sound card is not an issue - I never use onboard sound, I use my Edirol UA-5 w/ ASIO drivers
Windows XP SP2
FS9.1
hope that's everything there. Anyways, this problem is disheartening and quite aggravating, any suggestions would be great.