I am having the same problems with Xolox.
After the demise of version 1.12, I was able to make version 1.13 work again -- not entirely sure if by removing my network plug or by setting my hosts file to point Xolox to 127.0.0.1.
But the it stopped working after a reboot and I never could make it run again, no matter what I tried.
I am running win2k pro in a LAN behind a proxy *** firewall, with a socks proxy that I know its working. My machine is a PIII 1GH with 192 MB RAM.
I am still suspicious that the problem might lie with the network which is sometimes badly maintained, but I can seem to pin the problem down.
Meanwhile, Xolox just freezes on startup...
Hope someone can enlighten me.
Midas