...having the same issues with our '98!!!
Have you had any success?
Sometimes it almost "seems" temperture related to the point that the
window will NOT work at all...or it will with some help...
Other times it seems to have more of a mechanical "feel" to it...almost
like the track the glass is sliding in is somehow binding...
Then there are the moments where the stupid thing just has a mind of
it's own and I NEVER know WHAT it will do...
..like last nite when a nasty storm blew in unexpected & out of nowhere
and the TORNADO
sirens started blastig all around and the window
was stuck DOWN and I had the door panel & tools & all sorts of "stuff" scattered all about...yee-ha!!!