System Tbird 1.4, 80 g and 60 Gig Hd 3x256M ram For some reason now my sytem will not warm boot.. i.e if I update say the video driver .. and prompt for restart .. the screen will display some system file missing or noskernel.exe missing? and following that I SWITCH OFF the PC for 2 minutes .. and it will startup to XP no probem? Is this the MB issue ? I have swap the memory around have tried it with 1 x 256M, 2 x 256M ram with each one and it still give the same probelm.. I thought it was the heat issue .. I put a delta fan for the heatsink.... not helping either? BTW if I cold boot to XP ... I can play any game for hours without lockout.. and the system is very stable ? I have also re-installed XP fresh still no warm boot ? anyone experience such strange encounter before ? I have the feeling tis the MB issue!