In addition to the blog post SSMS-waiting-for-an-internal-operation-to-complete I have faced additional problems such as all the menus aren't displayed within SQL Server Management Studio from the same laptop. Other users within our team has observed similar behaviour within their Management Studio...
August 19 2007: As per the KBA-BlogPost on Cumulative Update 4 for SQL 2005 SP2, Microsoft confirms that this cumulative update package will be released in the October 2007 timeframe. The information that is presented here is subject to change at any time before the release date without prior notice...
Recently SQL Server support team had changed the process of releasing support hotfixes for the issues that are specific to a customer base. This KBA revises the incremental servicing model that is deployed for all the support fixes. We have moved away from current “priority driven” hotfix release model...
Source: Knowledge Base Product: Microsoft SQL Server 2005 Standard Edition Notification Contents: New and All Modifications The Microsoft SQL Server support policy for Microsoft Clustering http://support.microsoft.com/kb/327518/en-US...( read more )