If a Wine program window or icon is covered by another window, the Wine program ceases to respond. This happens when using the Gnome desktop (with Enlightenment), but not with KDE. KDE handles it correctly.
assigned to msf
You should be able to put wine into 'managed' mode (which has its windows be managed by the window manager). This should solve the problem for the short term - the long-term solution is probably to install your own, more recent version of Enlightenment and see if the bug is fixed, or use a different window manager.