I picked up a new mode 2 DX7 today but when I took it out the box, I discovered it had an anoying rattle inside that I know is gonna bug me. (Don't think its from the battery compartment)

Can't ask the guys in the shop till after Easter, too nervous to pull it apart so soon and I want to play with it now. Anyone one else had a similar problem or is it a dud?? [>:]