I found the exact condition that results in this problem. The corruption only happens when
1. There's more than one section on the screen. 2. The last row of the topmost section is only partially visible, and the visible portion is smaller than the section header. The part about the section header is just a guess, but that's the only explanation I see for the otherwise arbitrary point at which the corruption starts. Seems like a bug in the tableview. To work around it, I'll obviously need to shift the scroll amount of the tableview whenever this condition is true. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com