pickup/bridge toggling switch problem

Hey there. I've got a bit of a problem if anyone could help.. please!. When I'm playing now and then I'll switch from treble to bass using the bridge toggle switch, however say I'm playing first in treble and i got a good strong distortion, then I'll switch to bass and I obviously continue with the strong distortion, but when I switch back to treble sometimes the sound is much weaker, the stregth of the distortion gone!... this doesnt always happen, but when it does its annoying!!!. any help thanks?!!!. (By the way, im using a epiphone lespaul goth through a peavy studiopro amp)

[font=trebuchet ms]Are you accidently brushing up against the bridge pickup volume control as you play?[/font]

The toggle switch on that guitar is at the top front of the guitar just like a Les Paul, so I doubt he's brushing the volume knob (could be wrong though). Could it be loose wiring? When it's in the bridge position and it has the volume/output drop does it help if you wiggle/bump the switch (not switching back and forth, but just a little wiggle)? My Schecter does this every once in a blue moon, but if I wiggle/bump the switch it's ok.

My brother has the same problem on the same guitar. Try cleaning the toggle switch, and if it doesn't help, check the wiring.