after working perfectly from 5 to 50 minutes hardy crashes hard independent of what I am doing, reading mail, playing cards or just let the computer run idle. Same thing hapens using liveCD (unfortunately I found out after upgrading)CD check O.K - memory O.K - worked well with gutsy, no problems in windoes, just hardy -no errormessages, just freezes. while it works it's wonderfull, especially wireless support, thats why I upgraded mainly.