1) Why is enterprise edition useful for server consolidation? 2) Is microsoft IE 6 SP1 needed to install SQL Server 2008? If so why? 3) Can an upgrade can get blocked if perfomance counters are corrupt/ If so how do these counters typically become corrupt? 4) When you upgrade to a SQL Server failover cluster - what does the documentation mean when it says you can either upgrade an instance or upgrade a stand alone instance? How does this differ?