http://bugs.winehq.org/show_bug.cgi?id=35274
--- Comment #3 from haarp liquitsnake@gmx.net --- I get a strong feeling that the program only page faults when the user expands a directory tree and resides inside a subtree while the dialog closes.
When I close the dialog while being in a folder that didn't need expansion (such as a desktop folder), this bug doesn't seem to appear.