Hard drive not showing in W7

I have two SATA harddrives 0 and 1. I had Vista on firsst partition on 1 dual booting with XP on 0. When I came to load W7 it did not see drive 1 so I ended up booting it on a partition on drive 0. It is still a dual boot installation.
The problem is that W7 still does not see drive 1 (visible in XP and previously Vista)
It is not visible in computer management or elsewhere. The drive has 3 primary partitions none of which are logical.
Help appreciated.

Can you post a screenshot of the disk management MMC snapin, please? Just type diskmgmt.msc from the run box and click on it when it appears in the list. Alternatively, you can type "manage disk" and it'll appear as something like "Manage drives and partitions."

http://www.w7forums.com/newattachmen...manageattach&p=

First time for attachemnets so hope OK