I have an old powerbook (Ti book). 667 Mhz, upgrade to 1 gb ram, tiger (10.4.11) Also installed adobe CS3. All upgrades and installs went smoothly, but lately it is running really sluggish. CS3 updates get frozen before install is complete, stuffit expander freezes too. Firefox runs SLOW, adn I get the "pinwheel of death" a lot. I know there are some things I can do, I just can't remember what they are. (Disc repair??? or something like that. What about OnyX?) Any help would be great!