Have you tried unchecking the drop shadow setting, applying, resetting the drop shadow setting and applying?
Registry settings for this and the other effects seem easily modifiable on first glance: hklm\software\microsoft\windows\explorer\visualeffects
But editing these settings has as much effect as editing the settings for folder views (futile).
If it were either WB or WFX that caused the problem, were you to reinstall and then uninstall the program, your issue should be resolved.
-Mike
[Stardock Support]
