Fat Frog - 2-3 years old - just upgraded from 10.4 (probably as delivered) to 10.9.
Thanks to the forum - the upgrade to the OS worked and I spent quite a few hours playing with the Mac 550s - I had saved the show several times but just before lunch I pushed a disc into the drive selected save show - monitor goes black and Frog restarted - it went into a loop - removed power and the desk restarted show intact.
Each time I try to do anything with a disc the Frog crashes - sometimes going into a starting up loop - sometimes just restarting.
Any thoughts.
Bill