Bug when sorting by year in filter view

I'm running XP with the following addons installed:
Adblock
Aero Pro feather
Album View
Foxtab
Ipod support
Last.fm
Last.fm Album art
lastfmsidebar
lyricmaster
mashtape
mediaflow
MinimizeToTray
New Tab Button
Notify Me (disabled in 1.1b3)
Now Playing List
Quicktime Playback
Shoutcast
Song Tapper
The Exorcist

In filter view, if I do the following, I get the result shown below in the picture
1. Select an artist with multiple year values and at least one blank year value
2. Sort by year ascending
3. Scroll until songs with year values should be shown (view goes blank/blue)
4. Click anywhere in the song list (error message appears)



If nobody can replicate this I'll disable the addons and see if one of them's causing it