I am having the same issue. I see the code for onmousehover="return overlib( ..)
I think the issue is here:
, FGCOLOR, '#FFFFE2', BGCOLOR, '', CAPCOLOR, '#000000', AUTOSTATUSCAP
If I understand correctly, the background color is being set to ''. I don't know if that means transparent, or use some default, or inherit from something else, but the end result for me is transparent.
Is there a way to override that?