Is there anything I can help with?
I do experience that crash where it just says "cgminer has stopped working". A quick reboot and its up again.
Thanks. I'll keep you posted when I upload the latest debug build and I'll get you to follow the instructions on how to get debugging information from it.
You can read the instructions and get prepared here, but they're only cgminer 3.4.2 for the moment:
http://ck.kolivas.org/apps/cgminer/debug/