I am having the same problems. Windows XP SP3 & HL LaserJet 2200 printer. Adobe Acrobat X is messing up the fonts and substituting different fonts. Some documents will print readably, others garbage. I am rolling back to version 9 until they get this fixed!
We have the same problem where I work except we are only using Adobe Reader X and not Acrobat. An employee upgraded to Adobe Reader X and has reported a problem with the fonts changing when printing. Our application is accessed through the browser and renders the image as expected on the screen, but the fonts change when printing.
We have Windows XP the printers vary in make and model, but the majority are network printers.
I'll be interested in watching this thread to see what fix is offered other than rolling back to Adobe 9
Had the same problem at a client site and it was driving me crazy. Turns out that its a very simple fix. Under Preferences in the General tab, take a tick out of Enable Protected Mode at startup.
Once I did that on all client computers they printed fine to all printers.
Hope that helps some people.