My Clip Zip is suddenly crashing upon startup. When powering up, it starts committing database, then I get the PANIC message when it gets to 3/9. I do the power/menu restart but it keeps going back to that crash. I tried plugging it into the PC to reinstall but it can't locate the mount. I can't get into the menu to switch the USB mode and can't reboot into the stock firmware. Anything else I can try?