I have just upgraded to Tiger 10.4.2 and I am not overly thrilled with it. Fonts became an immediate problem, my design software was crashing constantly. I stumbled on the Font Book feature which appears to be the equivolent of Suitcase. I disabled Suitcase and moved everything to the Font Book and now manage my fonts from there. It is not as convenient as Suitcase but the crashes have cut back considerably. Other than that, things are starting to run smoother but sometimes my fonts just shut off and then pop back on so a design I am working on goes from the specified font, to Courier and then back to the specified font, but not usually before it crashes. Anyone know anything else?