Lewpy crashes

When I use the Lewpy plugin, it crashes my computer when I hit Esc. It takes me back to my desktop, but nothing happens on the screen, no matter what I do. Everything seems fine until then.

I'm running on a P2 300 with 128 MB RAM, Voodoo 5 5500 AGP, and SBLive Value. I don't remember the settings on the plugin, but they are all the default settings when I installed it. Pete's plugins work just fine, but I can't get FSAA to work with them, and that is why I'd like to use Lewpy.

Anybody have any thoughts? Thanks!