Yes, I have had this problem a few times, mostly with EPUB files that I created from instapaper.com news service. Instapaper compiles articles from various websites into one EPUB. It's sort of like the calibre Fetch News service. When this happens, I have to go through each article in the EPUB and figure out which one was the offender to cause the crash/reboot. Delete the reference to that article, recreate the EPUB and then it is fine. So I think it must be something in the code that causes this problem with certain EPUBs. I haven't been able to isolate "what" though.
EDIT: I have noticed that books that reboot my 950 also crash Reader Library. The same book can be read just fine in calibre.
Last edited by Bookworm_Girl; 12-30-2010 at 12:38 PM.
Reason: Added more info