Can't find local installed HDD

[jenssend]

I just upgraded to Win7. In this PC I have 2 HDD, one C drive which works fin, and one additional HDD which I'm able to see in BIOS and Device Manager, but it do not show up in Explorer.
How to get it visible?
Thanks

 

[wrt54gs7]

Right click my computer > manage, click disk management take a screenshot, post here.