Solidworks 2010 SP5 needs long time to save

Hi,

we have the problem, that solidworks sometimes needs really really long to save. even when it is a very small file.

when it takes that long to save sometimes the file is damged after saving and you cannot open it anymore.

does somebody know this bug?

Client:     Solidworks 2010 SP5.0 on Windows 7 x64

Server:     Productstream Professional 2010 on a Windows 2003 Server

DB:          SQL Server 2008

Thanks for any help.

Chris