I should have done this long ago, but here it is now .. for what it is worth. It took just a few minutes to do. One of those things that I hit myself over the head and say -- why didn't I get to this before? What am I speaking of? Dynamic sized graph tooltips. Yep, no more one size fits all. These size to the appropriate height and width, no matter what language and font is in use. When I originally wrote the code, I intended to do this, but just never got around to it.
This is coming in an update I'm publishing shortly.
(http://bitsum.com/images/pl_dynamic_sized_tooltips.png)