OQ add on.
most likely the issue is that you've been alt-tabbed for 30-60 seconds or more and a number of people on your b-net friends list have logged out. oQueue cache's the presenceIDs for 5-10 seconds then refreshes. if you alt-tab, oQueue's timers are nonfunctional. therefore, when you tab back in, it wakes up and tries to send out messages... before re-caching the presenceIDs. of course, some of them are no longer valid... and b-net complains.
what you can do is set you maxfpsbk to at least 20.
/console set maxfpsbk 20
this would insure oQueue's timers continue to function.
in the future, jump into vent or the forums and we'll help you out.
vent: wow.publicvent.org : 4135
i hope that helps,
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