Nokia Nseries :: N8 C Drive Filling Up On N8 Belle

Does anyone have a fix for the C drive filling up on N8 Belle?The suggestions in the FAQ and on various forums to delete emails, clear caches, delete photos etc are only temporary. Some people have said that re-installing Belle fixes the problem but it sounds like this too is only temporary.I am seeing MBs of space being eaten up by something, through normal use even when I perform these cleaning tasks regularly and don't install anything new. Anyway the amount of space taken up by a few emails is miniscule by at least an order of magnitude compared to the amount of space that's disappearing (kBs compared to MBs). It looks like something more fundamental is at play a resource leak somewhere, perhaps a process that's creating temporary files but not clearing them up afterwards.