My system is slow to load and no real problem with using the internet. It's just when I play BF3 online my system crashes hard sometimes and powers off or I get real slow fps/ freezes up and I have to shut down the pc to get out. Windows tells me the hd controllers driver (Marvell) is not compatible with windows 7, that everything is bottle necking at the controller and suggests I go to the OEM site for an updated, compatible driver. No luck there. No driver and they claim that hd is compatible with Win 7. The hd is a Western Digital, WD 5000 AADS, 500 gig, 32 mb SATA 3. End of the road? Do I have to buy a new hd that has drivers that are compatible with windows 7? Thanks for any help.