ive got a Powerbook Titanium 800mhz 1gig ram + 60gb HD. I use screen effects 'flurry' for the screensaver. thats the program with the coloured lines that bounce around the screen.. In the last week the performance of the screensaver has gone from what i consider normal (what looks like 25 frames per second or more) to what now appears to be about 1 framesper second and obviously looks like the Mac is struggling.. Also, my desktop picture is set to rotate randomly every 5 minutes. . normally the mac would fade between one desktop to the next. now it simply displays the new one with no transition at all. ive zapped PRam, NVram and used jaguar cache cleaner to do all kinds of things but to no avail. I was recently working with some very large photoshop files and Photoshop asked me to set some scratch disk preferences and said that the primary scratch disk is almost full (startup disk) yet the finder says that it has over 35gb free space (60gb total) . someone suggested it may be a Quartz / Quartz Extreme problem so i downoaded the 'Quartz Extreme Check' app which says this display is not accelerated. Im running 10.2.6 which i thought made Quartz Exteme standard? the Powerbook has the radeon mobility 7500 which is capable of driving quarts Extreme.. anyone got any clues? any help will be greatly appreciated. thanks.