SU files crashing Windows Explorer

MitchB

Hi,

I am having this strange reoccurring issue MANY times a day where I go into my 3D work folders where I keep SU files. Then if I click on a SU file-not even double click but just click to highlight-windows explorer crashes. I am talking Explorer as in the folders structures not Internet Explorer, just to be clear.

Usually it just says that Explorer crashed and needs to be reset but last time I got the attached message.

Any suggestions or settings changes that you can recommend as this is driving me crazy.

Thanks,