In general the SQL Server Management Studio takes at least 10 to 15 seconds to load on a user machine. Sometimes the SSMS tool can take a long time to load when there are a lot of SQL Server instances, this problem may also occur on the new 64-bit SQL Server 2005 platform.
One resolution is to add a switch to the Management Studio shortcut as defined below. Access the below screen by going to Start > Programs > SQL Server 2005 program group > 'SQL Server Management Studio' program, right-clicking will get you the following screen by opening the General tab, then select shortcut tab to add 'nosplash' switch:
Also the user needs to tweak the Internet Explorer security settings as follows:
Uncheck two options in Internet Explorer's Advanced Security settings. Namely:
"Check for publisher's certificate revocation"
"Check for server certificate revocation".
Both these steps combined should improve the load time of SQL Server Management Studio.