So... here's a new one... EConvertError?
 

I tried to fire up Xolox today, and after it connects to the servers, I get variants of this message:

HMODULE: 4194304
Unhandled exception EConvertError
Exception message:'could' is not a valid integer value
Call stack:

The integer value in quotations is a variety of things - sometimes blank text, sometimes unintelligible characters, and sometimes words like "could" and "not."

I use version 1.31 build 379 on Windows XP and a 1.3 GHz celeron. XOlox worked fine last night, but this morning and all day it crashes as soon as it connects.

Any ideas?

This may be a result of the bad Gwebcache problems.

Try this page to fix the Gwebcache:
http://www.xolox.nl/client/support/howtogwebcache.html