I'm running Office 2010 professional on Windows 7 with Adobe Acrobat X. The Save-as capability in the Office products allows me to select '.pdf' when I save and it appears to save succesfully (no errors and the Save-as pop-up closes itself immediately on clicking save). However, when I go to look for the file it is not there. I've tried reinstalling Office and Adobe Acrobat X one after the other in all orders (Acrobat first then office, then vise versa). I've also tried Office 2010 repair.
I see lots of issues with Office 2010 and pdf, but not this particular issues where it saves but without throwing and error dialog up: then the pdf is not there.