MacBook Pro running very slowly. Please help.
Since I upgraded to OSX 10.8.2, my computer has been running very slowly--painfully slow in some instances. I have 4GB memory, 2.4/2.2 Ghz Intel processor, 500 GB harddrive (184.64 GB free). I purchased Snow Leopard as a downloadable upgrade from the app store, so I do not have any disks. Any suggestions? Thanks! (Please be very specific as I can follow instructions, but am not a tech wiz.)