Weird virus affecting Outlook email access; extra non-working login

[ftoddt]

A client got a virus which they deleted after scan. However, whenever they try to check their mail by clicking the Outlook icon, they get a login screen. The login screen will not accept their login,domain,password entries.
I have deleted and reinstalled Outlook and get the same results. I can go to any other client computer and access mail when logging in as client. We are using Win2k LAN with Exchange Server 2000.
As I said, the client removed the virus. Said it was an agobot but not sure which one. I have researche Norton and tried scans and removal tools for that virus. Have also online scanned with Trend Micro.
Unless someone else has had this virus and knows how to fix it, I am probably up for a format and clean install.
Thanks for looking.
Todd

 

[ftoddt]

Problem solved. I could ping the exchange server but could see in the event viewer that I had a connectin problem with a MRxSmb error 3034. I went into network neighborhood and could see the mail server there but when I double clicked on it, it said it could not be found. I could see folders on the computer whose mail was working. So I did two things at the same time. I removed the computer from the domain and had it join a work group. while in the workgroup, I uninstalled the protocol tcp/ip, client for MS, until all were gone and then uninstalled the ethernet card. I rebooted and the nic reinstalled automatically, I put back all the protocols etc. Then rebooted again. The while logged into the workgroup, I joined the domain. Everything works fine now as it did before. Maybe this will help someone else.
Thanks to all. You got me to slow down and approach more systematically.
Todd