You're doing something inadvertantly...right-click on the track immediately after recording and click on "lock in time" (or something similar) and a tiny lock icon will appear on the left end of the track. Do this each time you record a track and you won't mistakenly move the track with your mouse.
Thanks, I'll give it a whirl next time it happens. I never got the message Undo Move so I didn't know what was goin on. Also, some of the wave was in the right spot while some of it was not. Whatever, I'll see what happens. Thanks again so much for the reply. I lost too many great performances with this problem.
D