This is a strange one; for some reason, Aero Peek tab preview isn't showing all of my tabs. I have enough tabs to be shown in a list, not with previews. I closed a couple of them, and then all of a sudden I see previews for the last few tabs I've opened, but not all of my tabs. Might be related to session restore? I just came back from a session and haven't given focus to all of these tabs yet ... Ugh, and I just lost my screenshot and can't reproduce. I swear that it happened, though. I'll keep this open for now to see if I can make it happen again.

I saw this bug today today, and I am still searching for the screenshot. In my case, I was updating from yesterday's nightly and then I saw the manifestation of this bug. Will work on reproducing and finding the screenshot which seems to have vanished from my hard drive.

I managed to get IE8 to lose some tabs. I don't know how though. I noticed it after playing around with the taskbar settings.

Are either of you able to reproduce this still?

Without any steps to reproduce and no further reports since late October, I am going to resolve this. Please reopen if it re-occurs.