http://bugs.winehq.org/show_bug.cgi?id=19410
--- Comment #7 from Andrew Talbot Andrew.Talbot@talbotville.com 2012-05-24 17:57:00 CDT --- This bug is still present in wine-1.5.4.
This program produces two types of tooltip: if one hovers over a stock symbol, the program shows the full name of the company in question, and that works fine: the text is visible; if one narrows the column until truncation of at least some of the symbols occurs and hovers over a truncated stock symbol, a second tooltip is then also displayed that is supposed to show the full (i.e., un-truncated) stock symbol text, in place; it is on this tooltip that the text is not visible.
(Note: Due to another, yet-to-be-reported, bug, PSM currently crashes immediately after a stock prices update. I believe the last version under which it is stable is wine-1.4.)