Thanks mudcat, and sorry Nomen. I'm kind of new at this (if you couldn't tell) and I naively assumed everyone uses dx and dy for the same thing.
Sorry for posting so much...
BlitzPlus Forums/BlitzPlus Beginners Area/Sorry for posting so much...The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.