Windows Small Business Server 2008 Support IE9 or IE10

seems earlier there were some issues win I.E 9  .. micro soft released the Roll up update 5 to fix the issues..

see the link

http://blogs.technet.com/b/sbs/archive/2011/01/26/sbs-2008-update-rollup-5-released-kb2458094.aspx

Update rollup 5 fixes compatibility issues with Windows Internet Explorer 9.  Windows Internet Explorer 9 will now work with all the default Small Business Server websites such as http://Companyweb, http://server/Remote, and http://Connect

The system requirements for Internet Explorer 9 are Windows 7, Windows Server 2008 R2, Windows Vista Service Pack 2 or Windows Server 2008 SP2 with the Platform Update. Windows XP and earlier are not supported. Internet Explorer 9 is the last version of Internet Explorer to be supported on Windows Vista.

IE10 runs only on Windows 7 and later version Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8 and Windows Server 2012.

IE7 version does support Windows XP SP2, Windows Server 2003 SP1, Windows Vista and Windows Server 2008.

SBS 2008 does not support directly with IE9 or IE10. You have to go wit h SBS 2008 Update Rollup 5 Released (KB2458094) for IE9.