I am using Act 2009 V11 and Outlook 2007. I receive the following error message with Outlook open and I open ACT email - "The file C:\Users\mike\AppData\Local\Microsoft\Outlook\Outlook1.pst cannot be accessed because another workstation has modified it. Close and then restart all mail-enabled applications. You might need to restart your computer." After restarting, the error message comes back in a day of two. Any ideas?
