Thanks for your help! window switch

Ok, so I was given this 95 Buick Century as a gift, runs an drives excellent! only issue was the front windows (power) did not work, read some old post anl there it was, same problems with great troubleshooting ideas. replaced the drivers side switch (30 bucks at U pull it) no help, but switch is better! pulled the door panel and found the power wire broke, spliced in a new piece and YEA!! passenger window works but drivers window will work about 2 sec then quit. I feel the regulator is bad. also, when I hold any of the window switches in the window up mode with the windows allready in there up position, the little "buckle your seat belt light" on the dash comes on. anyone else have this issue? or is this normal? thanks for all your help!
Ken