okay - I haven't gotten your SVN updates yet, I will do that next. (My build problems turned out to be a stupid path problem. oops! I needed a night of sleep to see that ^^)
I have tried with the patched code (rev 4028)
When opening wxSmith, I saw a blue rectangle briefly appear then it turned back grey again. If i hide the app, then bring it to front, i see a red one appear briefly but then disappear too.
If I click on the button icon, first time I saw a blue rect, then a red one, then it all went grey again. When trying to add various components, I see sometimes the blue one, sometimes the red one, sometimes it stays there but now always.
The red one sometimes appears (when the moving the mouse?)
I am now doing the svn update - coming back when it's done