If you are using Azureus (v2.2.0.0), one of the best BitTorret clients out there, you may have noticed that your machine is acting up? There's an unfortunate bug that only happens if you've upgraded to Java JRE1.5 too. Something Azureus is doing causes JRE 1.5 to consume CPU cycles and memory, in a similar way to a worm, that said I had a few hours wondering what the hell was happening and it turned out to be the combination of these two. I rolled back to 2.1.0.4 and everything is ok again. Thought someone would like to know. (There is a bug report on Azureus sourceforge.net page)