I deleted my Ubertwitter app yesterday so i began to reboot my phone in order to uninstall the application but the reboot bar stops at about 66%. I tried to remove the battery and re-insert it but this has not worked either, still stops at the same point. I have also tried connecting to desktop manager and while it can connect, it still doesn't reboot completely. This is so frustrating...anybody know how to fix this problem?

See Is your BlackBerry Nuked? - BlackBerryFAQ.

Another option is to try and boot in safe mode. See KB17877-How to start a BlackBerry smartphone in safe mode.

Either way, try and delete the app that is causing the problem.

If you boot up in safe mode you can do a full backup. That will be a good idea because you could end up deciding to wipe the device.

If you decide to wipe, see the two articles at the FAQ re JL_CMDER.
Posted via BlackBerryForums.com Mobile

How long are you waiting before pulling the battery? I'd plug it into an AC outlet - have it reboot - then wait at least an hour to see if it finally finishes on its own.