Receiving Error in Outlook- Problem Appears to be with Exchange 2000

Everyone, I have been having a problem with Outlook and exchange that has tormented me once before and it has returned again recently. It is a situation where I am receiving completely bank emails. These blank emails dont download. Instead they seem to trip up the "send and receive" of the exchange server and I get an error message that usually ends in "OK+". The result is that when my outlook connects again it starts re-downloading the same email over and over again - each time getting tripped up on the blank email. I get several blank emails a day. The reason I know it is the blank email that is tripping me up is because I go into Outlook web access and i delete the email and then after that, everything comes through fine. Does anyone know what is causing this to happen? Do i have a virus or a trojan horse on my server? My server is Windows 2000 server. Or do I need to download and install a patch? I think I have all the patches for Exchange 2000 installed. If anyone can explain why this is happening to me or provide me with an article on this problem so I can solve this, I would greatly appreciate it. ## Deliverables I want to solve this problem so that i never get this error mesage again. I want to understand why this problem occurredd so I can prevent it from happening again. Screen shots included 1) of error message in Outlook 2) of blank email in Outlook Web Access ## Platform Windows 2000 Server Exchange 2000 Outlook 2002 Outlook 2003