When I try to open a file in another app (e. g. opening a downloaded pdf in goodreader or a document opening a document in dropbox/sugarsync in openoffice) my iphone 4 running on iOS 4.3.2 crashes (it freezes and restarts after about 5 minutes). I have read on the internet that it could have something to do with Safari Download Manager, though deleting that tweak didn't help. Does anyone else have this problem? Is it even a problem connected to Jailbreaking??