I recently designed a huge media kit for my newspaper. The project was created in InDesign v.2 on my Mac and the only font I used was versions of Myriad Pro - regular, bold, condensed, etc. I made pdfs and sent them to the salespeople who all use Windows computers and printers. They complained that when they printed the pages, the "y" in the body text (Myriad Pro Regular) would print in bold, although the text was not intended to be bold. I printed from my Mac to various printers here with no problems.
Does anyone know what is causing the issue and how it can be fixed? Is this a Windows compatibility issue? It only happens with Myriad. No other fonts have this problem.
If I can't correct the problem, I may be forced to redo my design and change body text to Helvetica 
Any insight would greatly be appreciated.