GC Message Bar IE 10 ERROR

I’m running the latest version of GC Message Bar and I’m receiving the following error in IE 10…

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; EIE10;ENUSWOL)
Timestamp: Sun, 12 May 2013 16:18:18 UTC

Message: Object doesn’t support property or method ‘undefined’
Line: 46
Char: 3
Code: 0
URI: http://masondixonclaybusters.com/wp-content/plugins/gc-message-bar/src/jquery.easing.js?ver=3.5.1

http://wordpress.org/extend/plugins/gc-message-bar/