Error Expected Mobile.js

[bearback 0]

since upgrading to 3.1.3 i now have this error

tried the skin on a fresh install and its still there, any ideas ?

Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
Timestamp: Thu, 4 Nov 2010 19:16:34 UTC

Message: Object expected
Line: 2
Char: 1
Code: 0
URI: http://www.######.com/public/style_images/Mobile_2/mobile/mobile.js

[Timan 0]

What browser/device are you getting that on?

[bearback 0]

IE7 netbook

also when viewed on home PC

HP ipaq not sure what browser

Edited November 4, 2010 by bearback