My original post was fairly specific I thought because in the Save dialog box I could repeatably get it to crash in a couple of seconds, by simply widening any column (dragging the header separator) and clicking the header on a different column.
However, I can see your difficulty now. I just tried this same procedure on my home laptop and could not replicate the issue. It must be something specific to do with my work laptop.
I think we'll put this one to bed now.