2000, Drivers side 1/2 door stuck

[carriker]

2000 GMC 1/2 ton extended cab.
The drivers side rear 1/2 door is stuck closed. The latch feels normal when pulled but the door just wont budge. I'm pretty handy and have plenty of tools. Anyone know how to fix this or diagnose the problem?
Thanks!
Matt

[Drift2k]

not sure if those are setup simaler to the S10 Extreme, But, Id try pushing in(same direction as shutting the door) and pulling the handle, I had an extreme once and I had to push in on the door and stick a screwdriver in the door and pop the latch with that. (simple once you figure it out) then I just lubed everything with white lithium grease and it worked like a charm! good luck! this may work for you!