B/W Distribution Page error

[Anonamice]

Intermittently I get an issue where the graphs do not display on the Bandwidth Distribution page. I have recieved similar issues on multiple PC's, however both were IE8

Status Bar in bottom left of IE window reports page error, and when you click to get details the following is reported.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.6; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.1; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MS-RTC LM 8)
Timestamp: Tue, 26 Oct 2010 23:33:42 UTC

Message: Object expected
Line: 273
Char: 3
Code: 0
URI: http://xx.xx.xx.xx/js/bdist.js

[Anonamice]

Sorry forgot to add that this is using version 1.3.5 (beta) on an ASUS WL-520GU router.