Just wanted to point out a quick fix for anyone getting errors when upgrading to jQuery 1.4.4. I initially thought this was a jQuery issue and opened a ticket here: http://bugs.jquery.com/ticket/7180 But it was pointed out that it was a small issue with NyroModal instead. the fix for this is to open the uncompressed source and change line number 341.
Before:
callingSettings = $.extend(true, settings);
After:
callingSettings = $.extend(true, {}, settings);
Just pass in an empty object as the 2nd parameter and this is will make everything work again. Follow the link above to the jQuery ticket for a better explanation of what's happening.