No matter what I do I can't get my ad hoc provisioning profile to work.

In Organizer, I always get "A valid signing identity matching this profile cannot be found in your keychain" for my adhoc profile. I have my distribution cert installed in my login keychain. I dragged the adhoc mobileprovision file to XCode... that's pretty much all there is to it, right?

I searched around and found suggestions like re-creating the cert/profile. Did that, same thing. Also make sure your login keychain is default. It is. Even tried a different computer. Same result.

In XCode AdHoc target I don't have a distribution target to pick.

This all used to work, but obviously I messed something up.....

Perhaps my process is just wrong (it's been months since I did this). Does someone have a step by step list of how to set up for adhoc distribution?