The last week or so I've occasionally had a problem with FS. I have Windows ME, 733mHZ, 512SDRAM, GForce 4 MX 64mb PCI. Its not happening all the time, just occasionally, and it seems to happen more when I zoom in.

Hmmm, looks like your ground crew got carried away with the max differential pressure test, and the safety valve didn't open before the fuselage did. :7 Seriously though, these are classic symptoms of an overclocked video card. Are you overclocking?

Not that I know of.

Could be overheating caused by a furball in your heatsink fan on your video card. Don't laugh, but my CPU suffered this same fate a few months ago when it was found that my system was crashing with increasing regularity.

WHat?

Dust.