Not sure if all of this is only on my end, but there are two issues I have been running into lately.
1) When mousing over an item link in the WoW skin, the overall brightness of the screen changes. (This may be solely on my end, as the same effect happens when I have stuff here "highlighted" via Firebug). I don't know if it is the opacity change that might be affecting the whole page.
Before:http://i4.photobucket.com/albums/y143/dgqfan/Picture1-2.png
After:http://i4.photobucket.com/albums/y143/dgqfan/Picture3.png
2)In trying to find out what may be causing this change in brightness, I noticed that every mouseover on this item link will add the same script to the head of the page. While it is not a huge deal, just thought it would be something you would like to be aware of.
http://i4.photobucket.com/albums/y143/dgqfan/Picture5.png