4.0.0 , 4.0.1 crash ~4 sec after file I/O sub-window opens
versions 4.0.0 and 4.0.1 crash ~4 sec after file I/O sub-window opens (i.e. importing stl or exporting g-code or any other file operation). This has never happened with any 3.x versions, I still have them and they still run fine.
