So I just got my MBP, and I'm enjoying learning the Mac OS, but I'm having a problem. Whenever I close an application or switch between them, my USB mouse becomes unresponsive, it still lets me click and right click, but it won't move for 5-10 seconds with each switch. The trackpad still works through this all though. Any suggestions to make it stop becoming unresponsive? Thanks! Edit: and while I'm here, where do I check the fan speeds/computer temperatures, is there a built in application for it? Thanks again!