I received the reply below from TealPoint reguarding the TealPaint screen grabber not working. Sounds like the ball is in Handsprings court on this one.

Although our products are made to run on the palm os, the Visor seems to do
some things differently. This causes the problem with TealPaint were it
will not do a screen grab. This, and any other Visor specific issues will
be addressed when there is a de-bug version of the Visor Emulator available.