OT, but I figured if anyone knew, you guys would.

I have had 2 "wall wart" power supplies with this phenomenon thus far.

When first purchased, my 12 volt 1 amp power supplies would pump out 12 volts when hooked up to a volt meter. I started noticing that on the output side of my voltage regulator, I was getting 8.7 volts instead of 5! So I checked the wall wart again, and it was pumping out 22.8 volts!!!

So is this a problem I am causing, or does this happen to "wall-warts" sometimes?

I am using a LM7805 to produce the 5v from the input source and I have a polarized cap on the output side.