yu.prn?
 

I found a file in my my documents folder called

yu.prn

What the heck? I opened it in note pad and it was just a bunch of text that didn't seem to make any sense. Anyone have any idea what this might be???

Thanks.

http://www.frogmorecs.com/arts/what_is_a_prn_file.html

Maybe you accidently had "print to file" checked when printing something.