I'm pretty sure that is a popular app, so we can look to adding it to our metamorph zip (no promises!). The reason that is goes WoW when DE is installed is because we invert the system colors. So your app declares its background as white but then looks to use the system text color, which typically would be black -- but with DE is white.
If more apps would declare their colors inhouse, we'd have less issues.
I can probably find a different widget for a while, I actually only use it for my tasks because it is the only scrollable widget for tasks I have found and because I like how I can skin it (fully transparent)