Mouse enter and mouse leave not detected in small controls

Look at the attached VI. There is a thin boolean with mouse enter and mouse leave events which are not always detected when moving over the control quickly. I'm not sure whether this behavior originates from LV (7.0) or from the way XP handles the mouse movement, but I would definitely call this a bug in the sense that the mouse does "enter" and "leave" the control and the events are not fired.
My guess is that windows does not register all the points that mouse goes through, but only does so periodically. If it happens that 2 adjacent points are on 2 different sides of the control, LV can't recognize the enter and leave events. But that's just a guess.
Try to take over the world!
Attachments:
event bug1.vi ‏26 KB

I put together a quick test, but I'm not sure what the results mean.
Lynn, one of the tests uses windows API (although you can run the other one).
Shane, sorry, only 7.1 on this PC.
Message Edited by tst on 07-12-2005 08:38 PM
Try to take over the world!
Attachments:
event bug25.vi ‏40 KB

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