Question HTML Tidy and Mozliia Suite 1.7.11

I have upgraded to Mozilla Suite 1.7.11, on a Windows XP SP2 system.  
I've reinstalled HTML Tidy, using tidy-050522-setup.exe.

The green check box appears in the lower-right corner of the Mozilla 
browser screen, and it does so for any page I visit or open locally from 
file.  When I "view source" from the Mozilla "View" drop-down menu, the 
view-source page opens, but no html is displayed.

I had HTML Tidy running on the earlier versions of Mozilla Suite (1.7.10 
and below), and was able to view source html then.

But, now that I've upgraded to Mozilla 1.7.11, HTML Tidy seems to not be 
functioning properly.

Are there any fixes for this situation?

Matthew.