Hey knowledgeable guys, I pulled out my trusty DMG today to whip up some tunes and realized that I'd left it on all day while at school (~10 hours). It didn't work, so I replaced the batteries. It still didn't work, though the batteries themselves may have been dead; I found them in the back of my desk. I won't be able to get new batteries until at least Monday. So what I want to know is, how can I fix my DMG, and--MOST IMPORTANTLY--will this damage my Nanoloop 1.3 cartridge, which had been inside the DMG?
The gameboy is prosound and backlighted if that has any effect.