My driver side window became unglued as well, and the thing that worked best for me was windshield weld for re-gluing. It's held for about 10 years.
I tried it after several failed attempts with other glues. The windshield weld allows for some flex, and that's exactly what was required since the clips weren't perfect and the slide guide was no longer perfectly straight.
Sirius/Aeroforce Interceptors SCSS pod/Kenwood/4300K lows/HSV steering wheel/ROH R/T pc'd 18X9, 18X10/ 245 RE-11A,285 Nitto 555/fenders rollled/ARP wheel studs/DBA Wiper-Slotted/Hawk HPS/Russell SS brakelines/Lovells rr bushings/BC coilovers/Lovells strut mounts/Hotchkis sways/fake sap front bumper, SAP grills, hood scoops, rear fascia painted satin black/06 tails/Walbro 255/TVS1900/Kooks 1 3/4" LT's, cats/DMH/Magnaflow/160*/SCSS TVS mounts/LS7 Clutch/MGW-P
SD tuned by Cunningham Motorsports