Dear Support,
Apparently the UserName in both the Roles and Membership is Case Sensitive and following 2 scenarios which I encountered this issue:
1) Loggin in a Web page requires the User name to be Case sensitive using OraDirect and did not recognise the user if the letter case changes.
2) using the Roles.IsUserInRole(UserName, RoleName) has the same problem and did not recongnise the user name because it had a different letter case.
Please would you check and fix ASAP, unless there is a configuration flag which I need to set and not aware of.
By the way I checked that for the Microsoft Roles and Membership Providers and they are not case sensitive.
Thanks