My system (MBP2.0) was feeling a bit weird. This was after I installed Xcode 2.3 but I can't conclusively say that's what did it. I restarted a few time. Symptoms were beachballs just using Safari, ...
You can easily keep tabs on what's running on your Mac and get things running smoothly by using Apple's Activity Monitor. Here's how to get started. Most applications running on UNIX-based systems are ...