please i need help with something. I have just bought a new computer, motherboard (dx58so), Processor (Intel i7 950), 6gb memmory, Video Card (nvidia 8400gs), Power supply (Corsair 750 professional)... I putted together and i installed Windows 7 Ultimate 64 bits. It worked fine but it has an unnsual problem when i try to save something from the computer to a external device, (USB, External disc, etc), it doesnt work well, it is really slow and sometimes it blocks.. When i use only the intern disc it works normal... I called Intel for help, and they told that it could be my power supply, because i had a 550 v before, so i bought the corsair 750 professional.. I Putted together and still has that problem... I updated the BIOS and nothing works... Someone told me that could be windws 7 64 bits... Please somebody help me.. i dont know if it is a problem of the motherboard..