admin edit member profile section problem.

ok i have a problem that i cant change thing in the edit member profile section ( the section where the admin can click on a members profile from the admin pannel and change items etc)

The main thing it wont let me change is the membership section, where it lets you upgrade/downgrade members,

when i click on set membership nothing happens.

I have the same problem. I had to edit it in the DB.

i know i may sound really stupid but how do i do that?