I installed Snow Leopard recently and have had some really annoying performance issues/ hang ups when running multiple applications. I had no problems before and activity monitor isn't showing anything out of the ordinary. 2.4gz Intel Core 2 Duo with 2gb 667 mhz ddrs sdram Late 2008 macbook Like I said, I've never had any performance issues before this and now I'm getting frequent hang ups when multi-tasking. By hang ups I mean the little spinning wheel pops up and I can't do anything. Any suggestions?