rooted Nook Color stuck in boot cycle

I bought a used rooted Nook Color for my sister. It appeared to work fine; however, when I plugged in the charger at home it triggered a boot loop. It just keeps going to the Cyanogen orange and black screen with 6 options. I choose the first to boot. Eventually it will finally boot, but it's obvious something's not right and I don't really want to give it to my sister this way. Any suggestions as to what to do? I'm not completely clueless when it comes to rooting, as I did it way back in the Eris days, but I didn't install any custom rom's or anything so I'm not a pro there. Thanks in advance for any help.

 

Thank you for the reply Sorry for the late response, finally getting around to cleaning out the inbox

My sister has it now and she's 1.5 hours away and...not tech savvy in the least...
So, to the best of my knowledge...it's running CM7 I think, as when it does boot up it has a CyanogenMod screen. Not a stock charger - the one he included with it was an Energizer. I tried another microUSB charger to the same result - again, not stock. As for the rom v, not sure. I'll see if it's something she can decipher.

 

Thank you! I'm not sure what the amperage on the charger was, but I can tell you the charger I used on it was a phone charger. I did charge it with the screen off.