ZBrushCentral

Zbrush crashes when saving tools

It already happened twice and i lost a lot of work. I press ctrl+s and choose save tool after that i am promoted to hoose a directory and save file. I choose to overwrite and existing file and save the tool before the save is complete Zbrush crashes to the Desktop.
I use zbrush 3.1.
Any ideas?

Please see here:):

http://www.zbrushcentral.com/zbc/showpost.php?p=574629&postcount=2

Thanks i appreciate it!