I bought a SATA 3.0 Hard drive and my motherboard supports SATA150, I was assuming you can set the jumper for it to go at a lower speed. Apparently however my hard drive didn't come with a jumper so I'm sort of drawn ablank as to what to do, can your motherboard know on it's own somehow that it's a SATA3.0 and needs to run at 1.5Gb/s instead of 3Gb/s? My DVD drive has a jumper on it that is setting it to master drive, is it impossible for the DVD drive to run without the jumper? I have a feeling this problem with my hard drive is the reason I can't seem to get Vista to install, whenever it finishes loading files it shows me a really crap splash screen (looks like 4-bit color or so) that has no options on it and then it does nothing and I have to reboot. Any help would be appreciated.