oh boy 10.3.5 was a nightmare. after doing the update, my computer wouldn't start up. I had to reinstall the OS from my bundled disks. After that, I had a multitude of problems. Most of which were solved by creating a new user and moving all my preferences and files. Now I still have this niggling problem: Photoshop cannot open files. When I double clicks a PSD file, Photoshop opens but the file does not open. If i drag a file into the photoshop icon (dock and finder), it switches to Photoshop but the file will not open. The only way to open the file is to use the file menu in photoshop. Incidentally, during the transferring of my home directory, i had numerous files that could not be copied and gave a disk error. This was not caught by the disk repair how come? oh what a nightmare!