(re: QFG5 on XP?)
There is an unofficial Windows 2000 patch (you can get it from qfgs’ site http://www.geocities.com/qfgs ), though it it can be hardware related also. It will run on one of my AMD machines with an ATI card in both Win 98 and XP (dual boot), however it will not run in either OS on another AMD box with a Matrox card.