Trackpad goes crazy if I also use my wireless keyboard

My magic trackpad has been working great for a year, along with Apple wireless keyboard. Both pair fine to my MacBook Pro. Haven't had a problem until a few weeks ago. Now, if they are both paired, things are okay for about 10 minutes, and then my trackpad starts extra clicking, highlighting anything I'm hovering over.. right clicking, etc.

I've tried various things. Without the keyboard connected, it seems to work normally. I even read somewhere that maybe the internal Bluetooth reciever in the computer was going bad, so I purchased a new one that plugs into a USB port (Asus). This didn't solve the issue either.

Any ideas? I need them both to work because my computer sits up on a pedestal.