Logout Issue

I am developing a simple shopping cart. There are one module "Admin".

After I login to the admin module, I was able to log out. But I could not log out when I am at application. Yii cannot log out.

My localhost could logout. But when I uploaded to the live server which is in share hosting running on IIS 6.0, the log out didn’t work at that application. But it still can log out at Admin module.

I am using framework version 1.1.8 and it have been used for long. I didn’t encounter that Logout issue at other applications.

Which server configuration should I be changed?

Thank you in advance.

Win Naung