Hello! Yeah, I don't support the tone of some of the previous messages, but it brings up an interesting question. Can some senior member give a list of what the standard "vanilla-flavored" repository list might look under the newest diablo. I keep my N800 tablet fairly conservative but certainly test quite a few apps. I just had the Pidgin problem too and certainly believe it was because some app I tried enabled the "dev repos" behind my back! Now that I have disabled them (thanks to the excellent advice given here) the problem is resolved. I seem to remember that most apps will notify you if a repo needs to be added (and you can accept or decline) but apparently some apps do not play nice and enable repos without telling you (like the "dev extras", etc.) which can obviously cause havoc by "tricking" you into updating some app with an unstable developer version, etc.

Thank you for all of the good advice here and I am going to keep a watchful eye on my repo list from now on!