please help concerning this question on Membership

I did a post in asp.net but nobody answers to it. I hope that someone of you could help me (urgent problem).

http://forums.asp.net/1088483/ShowPost.aspx

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Here is the way I thought to loop throuth all profiles and update them.

For Each MembershipUser As MembershipUser In Membership.GetAllUsers
Dim myProfile As New ProfileCommon
myProfile.GetProfile(MembershipUser.UserName)

myProfile.Fax = "99991999999"
myProfile.Save()
Next

But It doesn't work. I get an error when it comes to myProfile.Fax = "99991999999".

Thank you very much for any advice!

Regards,
Fabian