Backend view problem 2.2

Hi folks,

When I go to administer my site, the admin view doesn't load correctly...it's just a long list and I see an Error on page error.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.1; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Timestamp: Thu, 13 Oct 2011 09:20:41 UTC


Message: Object doesn't support this property or method
Line: 233
Char: 1
Code: 0
URI: http://site_name/store/admin

Can anyone help?

Thanks,
Chris