I'd have to agree with RoadRunner - another option to check is to idle the car at night with the headlights on - press down on the window button - your headlights should dim just a tad (more electrical load). Press up on the switch and the two outcomes are (assuming that your window magically going up isn't a third)
1) headlights don't dim = bad switch
2) headlights do dim = regulator
If it's the regulator - hit up Joe or Terry at Sentry South in Boston (1.800.282.2290). Tell 'em you're a CEG'er and they'll ship it to you at wholesale. Got mine for $126 to my door (when my regulator bit it). Good luck!
