InstantForum.NET v2.9.0SQLServerCentralhttp://www.sqlservercentral.com/Forums/notifications@sqlservercentral.comMon, 20 May 2013 21:22:46 GMT20http://www.sqlservercentral.com/Forums/Topic1409745-1550-1.aspxThe problem was cause by a Local Security Policy.The fopllowing User Access Control (UAC) Policy setting was the problem:Only elevate UIAccess applications that are installed in secure locationsThe following article pointed me in the right direction.[url]http://www.computerperformance.co.uk/Longhorn/server_2008_uac_user_account_control.htm#How_to_Disable_User_Account_Control_(UAC[/url]Tue, 22 Jan 2013 10:21:07 GMTWelsh Corgihttp://www.sqlservercentral.com/Forums/Topic1409745-1550-1.aspxI have a SQL Server 2008 R2 x64 machine that I used to update 20+ Databases.My Login works fine but other sysadmin users got errors when attempting to start SSMS. Initially there was a permission issue to the machine.config but now the get the following error.value cannot be NULL parameter name: viewInfo (Microsoft.SQLServer.Management.SQLStudio.Explorer)Any help would be greatly appreciated.Mon, 21 Jan 2013 16:04:32 GMTWelsh Corgi