How does one repair a SQUEAKY mechanical window?

Thanks Tom. I think the squeak is coming from the window glass. It seems to be a glass squeak. Anyway, I figured I would have to take the door panel off anyhow to check everything out. I just learned how to "pop" off the window cranks, so on my next day off, I will try to take the door panel off. Another first for me.....but then again, pretty much everything is a first for me. ROOKIE!

Now that's a repair within my capabilites. Certainly worth a try and, if it doesn't fix the problem, at least I have a clean window!! Thanks again Tom.

UPDATE Took off the door panel and gooped up the window register with some white lithium grease. Adjusted the upper stop while at it. Found a lot of loose pieces in the bottom of the door. Some hardware and some weather stipping/ gasket type material. Anyway, I learned a lot and that pesky squeak is gone!