The tooltip hover overs are truncated when embedded in an iframe - there isn't enough space above column headers for the div to render.
I corrected this by just rendering below the column headers, but I'm not going to attach a patch as it doesn't look correct when not in iframe mode. The fix needs to be a bit more intelligent.
I can't think of anything intelligent to display outside of the iframe. Maybe the DIV of the truncation should be automatically word wrapped at the end of the DIV and continued on a new line (in the same blue box) ? if you have the possibilty to look into and submit a patch, it will greatly help :)
The tooltip algorithm, when loaded in iframe mode, should be allowed only inside the box, whereas the standard tooltip which is allowed outside.
if anyone has a patch please reopen