skins by Essorant don't appear right with eclipse or aptana IDE

I'm not sure how to describe what I'm seeing other than show an image of the problem. I work with a development environment (Eclipse or Aptana) that shows up a small window for code assist. Usually the window is filled with all the available options. For some unknown reason, when I use a skin from Essorant (the one I'm using is Jitter), which I really like, the small window doesn't show the list correctly. It is all white. If I scroll through it, only the selected or highlighted line shows up. I don't know enough about windowblinds to figure out what I can do to fix it. It works fine with other skins though. Any idea are greatly appreciated.