Kuron: Major timing issue (now dealt with) was due to Geforce cards and the anti-lag fix. Other minor glitches are Max/Video card related. My timing routines in BPlus were fine as BPlus didn't seem to have any glitches in full-screen or windowed mode. btw, did you ever check out all my Blitz Plus code libraries that I posed for free a few weeks ago? There might be something useful there ... maybe not.