Comment 2 for bug 594821

This is a known issue with interacting with Rhythmbox, since it doesn't reliably report when it has album art available. When it starts a new song, the metadata often doesn't include the artwork, and Rhythmbox doesn't provide any notification of when the artwork (if any) gets downloaded. The applet tries to work around this by querying Rhythmbox again a few seconds later to see if art is now available, but that obviously isn't reliable.