You have an older ATI Rage 128 or an older Riva TNT? As advised on the download page, you HAVE TO HAVE the latest video card drivers installed. Please see
www.ati.com or
www.nvidia.com for the latest drivers.
If your card is having 31.5 or 32 MB only, please reduce your desktop to 1024x768x16 before starting the Reflex.
The above cards are not 100% DirectX 8.1 compatible.
Cheers - wolfgang