Server 2008, need help

Hi,

I'm facing the most bizarre issue ever. I have recently switched over from Server 2000 to server 2008 running web server.
The webpages hosted are developed in house using ASP.Net (VB scripts) and database used is Microsoft Access database.

This is where the bizarre issues shows, there are some PCs connected on the Local LAN, are unable to view certain reports created where some are able to view everything without any issues.

The users are all controlled by Active directory, and all users are configured to be Domain users.

Can Anyone help?

*Mod If I'm posting this in the wrong place, please forgive me and move this post to an appropriate place