I have been using RDS since 95 and 4 months ago I put 5.2 on a G4, 400 mhz, with 350 megs of ram. Of course I had to use the 5.51 patch so it could work with system 9. I had no problem with this until a couple of weeks ago. Ray Dream started giving me a few problems (more crashes than usual) so I trashed the program and reinstalled. When I tried to patch the program I got this message, The default location required for this install could not be found. This install will be cancelled. My next step was to install this on another Mac ( a 9500 running system 8.1) and then patch that version and then drag it across the network here at work to my G4. This is what I had to do 2 months ago so I knew it would work. I got the same message on this computer when I ran the patch. In fact , I got the same message when I tried to update to 5.0.2. Any ideas would be appreciated.