I am new to this forum. I bought my MacBook in April. It came with 10.5.2. I then installed Parallels v5600 and then Win XP Pro, which was then updated to SP3. I've now updated to OS 10.5.3, and am trying to understand the recommended procedure for updating to your 5604. Is there a location where there is are COMPLETE instructions for doing this? I only see bits and pieces in this thread, and am looking for a step by step that doesn't eliminate steps or assume I know what I'm doing or have done this before. The update image for 5604 contains no such instructions for updating...only for installing. Thanks.
It is simple.
Turn off every program running on your machine.
Run the downloaded 5604 installer. It will update your 5600 installation.
Restart your Macintosh
Turn on parallels and start your vm.
Log in and let it sit there for a few minutes and the Parallels Tools installer should start by itself and update Parallels Tools.
At that point you should be ready to go.
That process worked for me.