+- If a popup wxMenu is destroyed after its parent window has been
+ destroyed, we get the message "Object XXX does not have windowed
+ ancestor".
+ Workaround: delete the menu before deleting the window on which it
+ was popped up.
+ Possible fix: call menu->DestroyMenu() before deleting the window,
+ if the window knows about the menu that was last popped up (hard
+ to know this with confidence).
+
+- In wxGrid, cell highlight is not drawn/erased properly.
+
+- Setting the size of a hidden window may show that window.
+
+- wxRadioBox sometimes doesn't show (e.g. in controls sample).
+
+- Can't set the colours for the buttons in the file selector, for
+ some reason.
+
+- On SGI IRIX 6.4, XtDestroyWidget in ~wxWindow causes a crash in
+ some cicumstances. This is being looked into. Meanwhile, a
+ possible workaround is to remove the final XtDestroyWidget line in ~wxWindow
+ (window.cpp). This will mean that child windows will only get
+ destroyed when frames and dialogs are destroyed, so dynamic subwindow
+ deletion may not work properly.
+
+- There are reports that scrolling can cause crashes under Lesstif.
+ This is probably a Lesstif bug.
+