The customer decides that after 4 months of the server being in production, the application has an issue with SQL2k Sp4. It seem to me a badly designed app. Most probably a development team without a DBA, thinking they can design and optimise their DB without the need of a DBA...

Supprisingly , they do say that it is compatible with SQL 2005 but this is "not confirmed", they said the exact words when we were installing Sp4...