2001-door lock switch - rear window latch

Well, I've checked out the posts and I cant find a answer to this problem.
My daughter just bought a 2001 Blazer 4 door and when we picked it up everything worked great. After she had opened the rear window about 10 or 12 times over a couple days, it just stopped working. The keyless remote, the button on the dash, nor the botton on the rear door will work.
Also the door lock switch on the front doors stopped working. The keyless entry will still lock and unlock the 4 doors but not the glass.
She did set the alarm off once by unlocking the door through an open window, but she said she was able to open the back glass after that.
Is there a fuse for the back glass I might not have found? What else should I look for?
Thaks for any help you can give,
Carl

Found problem,
There is a 3 amp fuse in the fuse box under the hood that blew.
Replaced fuse and all is good.