Hi.
I went for an 6 hour exam here in december and after 4,5 hours i saved my work two places on my computer to be sure it saved it properly.
I then closed mathcad with no problem but when i tried to open my work again, it said it couldnt read the file and it was only 0KB large.. 
- i couldnt fix it in time and now i must go to re examination.
I use MathCAD 14.0 - anyone else who has encounter this major issue? - i've tried it two times now with another file.
plz help, i dont want to make the same mistake twice