I recently upgraded my file server from Windows 2003 to 2008 R2 Standard server. After this, Office 2010 applications like word, excel, powerpoint etc take a long time to open files in the network shared drive. It says that its downloading the file and waits for about a minute before opening up. Can we set this to not function this way and just open up. I can open the pdf files without any significant delay. It does not give me any such message as downloading etc.Only the office files. I have attached a sample to show this downloading message on excel. I get similar messages on word and powerpoint as well. Any clues?