stuck tcltk scrollbars under Windows XP

On Fri, 06 Jun 2003 12:22:13 -0400, you wrote in message
<5.1.0.14.2.20030606122108.01e5f4a8@mcmail.cis.mcmaster.ca>:

Dear Duncan,

Thanks for the confirmation. I assume that the scrollbar problem went away 
when the calls to tkgrab() and tkgrab.release() were removed. Is that right?

Just tried that.  Things are better, but they aren't completely
solved.  If I click very quickly, then some of the mouse-up events are
missed.  Without the tkgrab, this doesn't cause a crash, but it does
leave the button stuck down, so the window starts scrolling
continuously.

Duncan