Captain_Cook's answer worked for me! It's so easy! Before I discovered that, I had been re-booting the computer to solve this.
Make a different printer the default Windows printer and try again.
Something to do with either driver or a registry error when installing and default printer is set.
I am still experiencing this problem with Acrobat 9.5.5. I am afraid to apply any patches designed for 9.4.2 for fear something else would break.
If you are running Adobe Acrobat 9.4.2, try the following Adobe solution, it works!
While I imagine this would fix it, it sounds like a lot of work. Did you try Captain_Cook's solution (above)?
You have to delete all printers records in regedti, HKey Current User, Printers ... reboot computer and in control panel add again printers. And all will work again.