Window regulator likely cause?

[patssle]

Been searching through the forum and haven't found my problem specifically. After I open my drivers door the window does not stay down the 1/2 inch - it pops back up to the closed position. But the door handles work fine - I have to open the handle to lower the window then close the door. The window switch works fine. The motor works fine with no noises. I've disconnected the battery then ran through the window reset system (lower all the way then back up). Has anybody had this issue? I'm assuming it's the regulator but just double checking.