Several of my projects contain multiline textboxes with scrollbars, and when you mouse over the textbox in Vista/2008 the text will disappear. This is a known issue from VB.Net 2005 (and it still occurs in 2008):
There is no fix available for it yet, but there are two workarounds:
- Change the border style to None or Fixed Single, or
- Parent the textbox in a new panel that does not have a transparent background.
Hard to believe that this hasn’t been fixed in VS.Net 2008, but maybe it’s a .Net issue instead of VS.