Sony eSupport - VGN-TX630P. It isn't obvious where to find it, but this is where you find the latest updated drivers. Probably the most importatn right now is the Wireless LAN update. It should fix lots of 2200BG problems.
I still have a problem with Cingular Connection Manager. After a while the low level driver hangs and then you lose the EDGE/GPRS connection. When you try to shutdown, the shutdown hangs.
