Dude: Your drive is not metric. there are 1024 bytes per megebyte. Ergo 350gig/1024 bytes per megabyte = 312. gb Hmmmmmmmmmmmmmmmmmmm.......Go into disk management an see if your dirve has a second small partition. If it does, remove that partition. If you don't know how to get there, let me know.
Noli Nothis Permittere Te Terere!!
EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.