As it says, can Cydia sources/repos cause app problems, such as crashes, freezing, etc? I don't mean apps or tweaks downloaded from the source, I mean the actual source/repo itself? I was having issues with my mail app, where the top bar that has the recycle bin and move icons was freezing up. I could use everything else in the mail app, just not the top bar. It was an intermittent problem and all was well before I added Xsellize repo. After adding that, it started to freeze. I have now removed the Xsellize repo and all is well again *knocks wood*. The weird thing was, I never installed any of the Xsellize apps or tweaks, just the source itself. Can anyone shed some light on whether certain repos can cause app problems? Thanks.