[Plugin: NextGEN Gallery] shutter-reloaded.js Invalid argument error

Hi, I have a problem with NG gallery on my home page, it works on other pages no problem. I think something on the page is causing the issue (i.e. something other than the gallery) but ot sure what. I can add the same gallery to other pages no problem, and adding any other gallery on the home page causes issues.
The error only appears in IE (8 and 7 I think, 6 is OK), and the gallery does not work properly a as a result.

The error is:

Message: Invalid argument.
Line: 41
Char: 4
Code: 0
URI: http://www.lavignasse.co.uk/wp-content/plugins/nextgen-gallery/shutter/shutter-reloaded.js?ver=1.3.0

The site is at http://www.lavignasse.co.uk

Any ideas?

Thanks