So do you know that read uncommitted is the same thing as NOLOCK??? The locking does NOT all happen in the vendors application. Are the users ok with the idea that the reports have missing and/or duplicate data? In short, these reports are NOT accurate and should not be used for making any kind of business decisions. At best, the values are approximate.
Here are a few articles discussing this hint and providing examples of how to recreate it.
http://blogs.msdn.com/b/davidlean/archive/2009/04/06/sql-server-nolock-hint-other-poor-ideas.aspx
http://www.jasonstrate.com/2012/06/the-side-effect-of-nolock/[/url]
http://sqlblogcasts.com/blogs/tonyrogerson/archive/2006/11/10/1280.aspx
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