After a really bad crash last fall, my computer exhibited strange behavior. The problem was that for every mouse click, a WHOLE SECOND would pass before the action was carried out. I couldn't figure out what the problem was and still haven't. I thought the problem was solved when I archived everything on my HD to CD, zeroed the HD, then reinstalled everything from the ground up. Everything was fine until another crash, now the lag returned, but not as bad. I don't think it's an extension conflict/problem because the system only started acting funny after the crash. I have the standard Mac OS 9.1 install that came with the Mac OS X CD. Extra drivers / extensions include: Logitech Wheelmouse, Hewlett Packard DeskJet 970Cxi printer and 5300C series scanner, Adaptec Toast 3.5.7 CD burning software, Microsoft Office 2001, iTunes, AOL instant messenger. Does anyone know what this problem is and how to correct it?