Shoutbox

I've been using MP!L (4.01) and WLM (8.0.0.787) for quite a while now, but for some reason it's begun crashing (ie, the CPU usage goes up to 100%, the system grinds to a halt, and the program becomes unresponsive).

I tried some things, which I thought might fix it:
- Upgraded to 8.0.0.812
- Removed all my plugins
- Reinstalled both Messenger Plus! and WLM.
- Uninstalled Messenger Plus! and checked if the problem still occured - it didn't.
- Reinstalled Messenger Plus! and played with some of the options. (Tabbed chats were my first thought, no-go)
- Uninstalled my WinAmp now playing plugin and turned off "What I'm listening to."

Anyone any ideas what could be causing this?