The album art at the top right corner of Pandora "blinks" while a track is playing. The album art in the center player area also "blinks" as it is moused over. I think this is because we're switching between low- and high-quality scaling. The album art is being scaled down in both areas.
<rdar://problem/10678461>
I couldn't manage to find archive link where I can reproduce this issue: https://web.archive.org/web/20120111023908/http://www.pandora.com/ I think if this issue still exist, we will have newer bug report with reduction and test case or we might have already resolved it. Due to lack of information / reduction to reproduction and live website to test, I am going to mark this as 'RESOLVED CONFIGURATION CHANGED'.