I have a late 2006 MacBook (the one in my signature). It's running the latest issue of Snow Leopard (10.6.4). I have upgraded the factory RAM from 1GB to 2GB, and the factory HDD from 120 GB with a 320 GB hard drive. Lately, all my apps are taking forever to launch. Firefox took 27 bounces before stopping, and then another 10 seconds or so before the window actually appeared. VirtualBox used to be snappy and responsive, but now it's so slow I actually boot up my 8-year old Dell if I need to use Windows. It never used to be this slow. I'm constantly getting beachballs...even simply quitting Firefox seems to be too much work. Just for kicks, I popped in the factory hard drive and WOW everything felt so much smoother. As far as I can tell, the only things that are different between that hard drive and my current one are that (1) the old one is running Leopard (10.5.6), and (2) I have created a secondary account on the newer setup for my fianceé. My two best guesses at this point are: 1. Issue with the new hard drive? 2. MacBook is slightly underpowered for running Snow Leopard? Anyone have any other ideas of what might be causing the slowness? Any remedies I can try? Thanks!