I suspect a problem in the power window switch on my driver's door in my '68 convertible and I am having a devil of a time trying to remove the plate that contains the switch. I asked a friend who has a 68 and I've done everything he recommends-- I've removed the 3 retaining screws (and a 4th one way back underneath)-- but the thing will NOT budge more than about 1/4" in any direction. Has anyone on the list ever done this on a convertible? I'm wondering if it's slightly different on the conv. than the 4 dr. Is there something else holding this sucker down? Mark M