The Technote (that Frank referenced), states not to call SetCCursor at interupt time, i.e., from a VBL, since VBL's are executed at interrupt time. At one time I thought I had seen a workaround for this on one of Apple's sites, or mention of source code in some dev kit for this. Chris ------------- [6] Technote 1020 Revised: Color Cursor Quirks If you're building an application that uses color cursors, you may encounter some quirks present in Color QuickDraw. This technote provides solutions to a few of the most common cursor problems. <http://devworld.apple.com/dev/technotes/tn/tn1020.html> _____________________________________________________________________ L. Frank Turovich turovich@... Sentient Fruit http://home.earthlink.net/~turovich -- To unsubscribe, send ANY message to <futurebasic-unsubscribe@...>