Intermittent Window, Door Lock, Window Problem

I just purchased a 2002 Buick Lesabre it seemed ok but within 24 hours
the
Power Windows
Power Door Locks
Power Trunk release
Power Mirrors

All stopped working
then to my surprise a day later they worked for part of the day

Yesterday I drove about 40 miles stopped a few times in between

everything worked on and off randomly I cannot seem to see any sort of pattern
another worde you could be driving down the road nothing will work and then all of a sudden everything will work
at one point I was able to roll the window down and then everything quit working about half way down.
Then I kept pushing the switch up and down and then finally everything worked long enough to get the window back up.

I have checked all fuses and switched all of the relays around with other alike relays.
I have checked the pillar grounds they appear to be fine

Any help would be greatly appreciated this is getting to be rediculous.

:eek7:

Are the Power Windows, Power Door Locks, Power Trunk release, Power Mirrors switch all on the master panel like on a earlier model?
When my 97 has problems with windows sometimes no opening, I traced mine to the master control switch on the door. When I go to a wrecking yard, that's the first part to be missing.
Hopefully you'll get some more reply's, just starting the discussion.