At first I thought my mouse was dying, hence my post for mouse recommendations. Thank you all. I ended up buying a Logitech 510 which is very nice mouse. It not the most comfortable mouse to use, but thats another issue.... However buying a new mouse did not alleviate my mouse problems. I am experiencing 2 to 4 second pause when ever I click on things. It becomes very apparent when I try and close finder windows, tabs in safari, and files. Yes, I've looked at the key board and mouse setting in my System Pref, which seem fine. I am almost certain I noticed this mouse issue after I upgraded to .3.7... Does anyone have any suggestions, ideas, thoughts? Thanks - Craig