I don't have G2, and thus haven't used this feature. But, from a general software perspective, make sure you have the most up to date drivers for your sound and video card. Also, be sure you have the latest version of directX (ver 8.1). The next problem you could be having is conflicts with other software. Try pressing CTRL+ALT+DEL, and ending all programs except Explorer, and Systray. Now, try running the program. Let me know how it goes... Finally (after all else fails) a good clean reinstall of Windows usually fixes everything : )