I
had the same problem. Thanks to another posting was directed to this solution at kb.palm.com. Solved the issue. Go try.
http://kb.palm.com/SRVS/CGI-BIN/WEBC...Case=obj(31369)
Solution ID: 31369
Media application disappears after a HotSync operation
If you are upgrading from a previous device that included the Palm Photos application, the new Media application may be overwritten by the Photos application in RAM. This application will show up as Photos-Foto and cannot be deleted from the handheld using the Delete command in the App menu.