We have a range of PC's which we upgraded from the previous Office version to Office 10.
After the upgrade the Calibri font does not print (on Xerox Phaser printers or into PDF's) correctly. It misses out some characters, for example X and K.
Calibri isn't embedded in the printers, but then it worked fine before Office 10.
The font does display correctly on screen.
If Calibri had been screwed up generally across Office 10 I would expect lots of hits on the problem in Google, but there doesn't seem to be a general problem, just us, hence the 500 points.