Thank you for adding your experience to help others with this...
I am no guru, but I do search for answers and solutions whenever I am trying to solve a problem.
Info like this helps me, no matter how "old" the question is.
Interestingly I just
ran into the same issue!
I placed an order on Newegg and got the same message trying to "print to file"...
I worked around it and got the info I needed...meh
Seeing this thread, I was intrigued and curious...and had to try...
I tried printing to file from the SF page, and again got the access denied error!
I log into Win 7 with a Standard (non-Admin) account, and use Firefox.
I closed the FF Window I was using, then started FF with "Run as administrator".
Tried printing again, and it printed to a file with no errors !
fwiw, here's a screen print with the error I see when running FF without Admin authority