[8.930] HTML5 VPN with RDP connection

System = ASG 320
installed since 8.910 and upgraded twice since using UP2Date

Browser = Firefox 11.0 & IE 8.0.6 & Chrome 18.0.1025

in 8.920 the HTML 5 VPN seemed fine

since 8.930 connecting to an RDP Session opens a new window which gets to "Starting a new session" and then the browser window collapses.

Pressing connect again allows connection successfully