Memory Mirrors

Recently got my 2002 Bravada (used) and it seems in very good condition.

One thing thought, the memory outside mirrors seem to have a mind of their own. When you record a seat position it also memorizes the mirror settings, but even when the same driver unlocks the doors with the remote the mirrors change positions randomly.

Is there some method to re-zero (home) the mirrors or some other trick to get them working properly?

Thanks

Evidently this problem has been around.
Here's lots of discussion,

http://forums.trailvoy.com/showthread.php?t=29146

Thanks for the information Chris.

I'll have to explore to see if I can correct this myself without paying too much.

Thanks again.