How are ou applying a watermark to a Word document. I am not aware of any native facility within Word that provides explicitly for a watermark. Is this something you are applying through a print driver or a third party plug-in? Are you applying a watermark in a PDF you've already made from the Word document.
A little more information and perhaps we can begin to help you out.
There is a native function to enter a watermark in Word. In Office 2010 it is on the Page-layout Tab. illustrated here --> http://www.trickyways.com/wp-content/uploads/2009/06/click-on-page-layout-and-then-waterma rk.gif
So i also tested it on a Windows 7 with Office 2007. when inserting a watermark the text stays the way it should. So it is probably an issue betweeen Myriad Pro in combination with Office 2010.
Here is how i can reproduce the issue. I create a completely new word document, insert a short line of text with the font Myriad Pro. go to the Page-layout tab and insert the watermark "urgent 2" (same happends with other watermarks).
in this image i inserted the test "Dit is een test". the result is:
The same happends when the text is, bold and/or italic.
OK, thanks for the further information.
Yes, I can reproduce this. I also tried this same construct with other applications with Myriad Pro 11pt with equivalents to Microsoft's “watermark” feature (implemented as translucent outlined type - i.e., a non-opaque polygon - overlaying the text).
There is nothing in the font itself that is point size-dependent.
Given that we cannot reproduce this issue with other applications and you cannot reproduce it with other Word versions, the variable appears to be Word 2010. I would suggest that you report the issue to Microsoft and see if they are aware of the issue and of any fix.