Hi I do not know if this problem I have is with my settings, the program I use to run both monitors called UltraMon, or IE9 RC. I'll have a music video on my right monitor playing full screen then if I click on my left monito's desktop anywhere it exits from full screen. This problem is not on Fire Fox or Google Chrome as far as my testing has showed me. ALTHOUGH, I have seen it happen at least once in Google Chrome but tried it again serveral times after that and did not happen again it remained full screen and was able to do anything I wanted on my primary monitor while the video ran full screen on my secondary. Thank you for taking the time to read this I hope there is an answer to this problem I really like IE and IE9 has great potential.

I do not think IE can support a spanned display. Few programs are designed that way. My MVP is for Windows XP, Vista and Windows 7 IT, and I am getting increasingly good with Visual Studio. Developer | Windows IT | Chess | Economics | Hardcore Games | Vegan Advocate | PC Reviews

Hi, I have tested IE9 with full screen on dual monitors without problem. I suggest running IE9 with no Add-ons and perform a Clean Boot to check the result. http://support.microsoft.com/kb/929135 Click Start Button -> All Programs -> Accessories -> System Tool -> Internet Explorer (No Add-ons) If the issue persists, please update your graphics card to the latest version. IE9 RC full screen requires dx11 graphics card. Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

The question, as It was asked, and as I ask as well, was about *keeping* full screen while watching a video within a browser, meaning "full screen" not related to browser window but to playing frame. This is unfeasable to me with any browser (unless tweaking firefox purposly). It would be very useful to solve this issue, because it's very used. Any info is welcome, ty!