I'm banging my head against concrete here, and wondered if any of you have experience of Outlook 2007 and Windows 7 Ultimate 64 bit, accessing an Exchange 2003 Server at my office from my home desktop. I have access via the same Virgin Netgear Router here at home via my laptop which has Windows Professional 32 bit and Outlook 2003. As far as I can see, the Dray Tek Smart VPN Client is set up identically tio the laptop. I know for sure that the VPN is connected, as I can access any of the server's drives, and even Remore Desktop to the server. But whatever I try, I keep being told that the Exchange Server is not available. However, what has got be a tad suspicious, is that I have a similar problem accessing an America supplier's server using the same Username and Password as I do onloy my laptop, which suggests that I may be missing something 64 bit specific. Has anyone any thoughts? George.