Not sure if it's limited to Arrse, but not currently happening on other web sites; When I 'Right Click' on a link, and select 'Open in a new tab' from the context menu. Mostly it does so, but occasionally, it opens a new window instead. I also get an 'Unable to restore webpage' error in a new tab on the orginal window. I'm using IE 10, on Windows 7, with 10.0.7 as the lastest browser update. I use Chrome occasionally when not on the work laptop and the issue doesn't appear there. It's not a serious issue, more of an annoyance. It seems to happen most often when I've started a browsing session, far less so an hour later. It's not tied to any particular link either. I played about with disabling add-ins and accelerators and such like, but it doesn't seem to make any difference. Nothing show up in the event log. Informal discussions with work colleagues have suggested it's a site scripting issue rather than a browser issue but that IE10 is susceptible to it. Any thoughts, or anyone else having the same symptoms?