I have a client that is experiencing a strange issue with Quickbooks Pro 2006. They have QB installed on 3 systems that access the company file from a network share on a server. They can all access the file just fine. The issue is that one computer behaves weird. When the user opens up the company file from this computer they can only open the file in read only and can't make any changes. Doesn't matter which user account they logon as. If that same user goes to another system to open up the same file it opens up properly and they can make changes. Any thoughts on what's causing this specific computer to open up the company file in read only mode?