We had 40 Sony Z505's issued around our company. 20 were dead within a year. I'm one of the few people who still has a working unit (upgraded to WinXP BEFORE Sony removed those drivers from their website).

My biggest gripe with Sony is that they had NO intention of supporting a new OS on a STILL useable notebook. Their replacement and warranty support is the pits, hence why our IT folks scavange them for spares and don't send them in for service.