Hi all,

One of my students is observing some strange behavior involving the Program 
Contour pane of DrRacket. He’s using v6.11 on OS X Yosemite 10.10.5.

This is the top-right corner of his DrR window, with Program Contour open:

Upon pressing Cmd+U to hide it, this is what happens:

Additionally, the previous day he’d found that (with the Contour pane open) DrR 
was flickering while he typed, and (when I suggested closing the Contour pane 
to see if it was slowing down the window redraws) pressing Cmd+U or selecting 
the “Hide Program Contour” menu item did not hide the Contour pane.

Any ideas of what we could do to diagnose this problem?


You received this message because you are subscribed to the Google Groups 
"Racket Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to racket-users+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to