web config

i am using Asp.Net using VB.net in VS2003,

In web.cofig i gave the authentication,in the i set the time out for 30 minutes,its working,

but if i give 60 min its not working,

 here is the code in web.config

 

 <authentication mode="Forms">
      <forms loginUrl="~/HRMSLogin.aspx" name="HRCookie" protection="All" timeout="30">
      </forms>
    </authentication>

its urgent

 

plz helpppppppp

 

 

byeeeeee
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