I am still confused about this. I have sent CDF documents written in Mathematica 10.02 to folks that get the "pink" screen when they use the CDF player in Internet Explorer (Windows 7) but when I view the same CDF document on my Windows 7 Internet Explorer (on the same machine with 10.02) everything looks and operates fine. (Yes, I hate it, too, when others don't attach examples but in this case I can't as the project is not mine to distribute.)
Looking at the CDF document in a text editor I see an "UntrackedVariables" statement
but no UndoTrackedVariables.
I also see that UndoTrackedVariables is in the online help but UntrackedVariables is not.
Should I be removing UntrackedVariables, too?
Thanks for any clarification.