The update is I got a responce a week later from WD, they claim that my motherboard is not SATA II compliant. Ill just live with the 150 mode, my goals for buying a new hard drive were met and the drive functions just not the mode I thought.

My goals for buying a new drive was size, 40G is not enough for a computer geek, Cable size, those ribon cables are too fat, and something faster then what I had. So all those needs were met and besides the 150 limitation im happy.

Though Id have a tendancy not to go with WD in the future.