Why does Phex max out my CPU when I run it?

Surely, it doesn't do *that* much behind the scenes? Its actually been causing overheating problems. Yes, I need a better heat management solution, but in the meantime, I'd like to be able to leave Phex running without be around to keep an eye on my CPU temp...

As a workaround, I set the affinity to one CPU (its a hyperthreaded CPU, so that throttles Phex a bit, but not much).

Also, I noticed that it will spazmodically lose connection to all other hosts, reporting "Socked Closed" on the network tab. Why is this?

Here's my configuration:

Phex 2.6.0.87
Java 1.5.0_04-b05 (mixed mode, sharing)
Windows NT 5.1 ("XP") Professional (Version 2002)

Intel Pentium 4 3.01 GHz Hyperthreading
1 GB DDR-400 RAM
Plenty of free hard disk space

Thanks,
Fidel