Aggienator

My son has an NW-A1200. After happily usng it for nearly a year he plugged it in to his computer today and nothing happened, checking in Task manager omgjbox is consuming 99% CPU resources. I have tried rolling back to an earlier restor epoint and removing recent Windows updates, but the problem persists. I have read of people re-initialising the device to overcome "the omgjbox problem". Might this help him? Many thanks, Aggie System 1.2Ghz AMD, 1.5GB RAM, Win XP Home SP2, SonicStage 4.3.