Hi,

My ASP.NET's a bit rusty but:
One thing to check is whether Session State is enabled on the problem web site. In IIS open Properties/Home Directory; click Configuration button in Application Settings; select 'App Options' tab and make sure 'Enable Session State' is checked.

HTH,
Viv


>Hi Kevin,Viv Thanks for your replies
>
>Why then dos it work fine on my development machine ?, and no error
>comes up. If it is'nt defined , then would this not also happen on my development machine also.
>
>I thought that maybe it has something to do with session variable not being allowed on the production machine...do you know if there are any such setings ?
>
>Regards,
>Gerard
>
>
>>My guess is that your session variable isn't defined (or is null)
>>
>>
>>
>>
>>Kevin