Version: 1.6.1 (using 4.4.1 (KDE 4.4.1), Gentoo) Compiler: x86_64-pc-linux-gnu-gcc OS: Linux (x86_64) release 2.6.33-gentoo Sorry for this undetailed report. But I have no idea how to reproduce this. It just happened to me that I got an "unread" count of -1 in one of my feeds (which got propagated all the tree up to "All Feeds"). In the feed folder where the count was -1 there was only one unread message (so the counter should have been 1 and not -1). The message was not readable after clicking on it. I changed the filter from "unread" to "All Articles" but this specific message was not reable even after first clicking on other messages. BTW: It looks like it has a title, an author and a time, but no date. I still have this message in the list, so if you want me to do sth. with it, just ask.
I just changed my settings from "delete messages after 30 days" to "keep them forever" so this message won't get deleted. I don't know if this is related. Buuut: After I clicked on All Feeds and left the sub folder with this specific feed Akregator/Kontact crashed. Unfortunately I just started keeping debug symbols and haven't recompiled KDE since then. So there was no usable backtrace.
*** This bug has been marked as a duplicate of bug 173090 ***