Speaking as a user/recipient, not a poster: here's another vote for posting both C# and VB.NET. (If you posted the Java, too, I'd read it out of curiosity... never done Java (don't drink coffee, either ;) and that would be an easy / interesting way to be introduced to some.) Thanks, -- Doug

Thanks for the reply. I tried just now: similar error. This time, I tried both Firefox (3.6.3) and Internet Explorer (8.0.6001.18702), and both gave me "Error: Invalid viewstate" messages. Notes: I've recreated this error ("Error: Invalid viewstate") in varied sitations, to eliminate variables: -- Same/similar, from 2 pages on your site (both in the membership area, details below). -- Same/similar, in multiple browsers -- so, it's probably not browser-related. -- Same/similar, from both home and work -- so, it's probably not connection-related. -- Same/similar, on both my laptop and my desktop systems at home -- so probably not the computer. What's not varying: -- both systems are on Windows XP. -- both errors are happening when I'm signed in. -- both pages below are in the membership area of your site. Details, this morning: 1) In Firefox, on the page: http://www.codeproject.com/script/Membership/Unsubscribe.aspx?tg=717772305789471&l=4[^] When I click "Update My Subscriptions", I get the text-only error page: Error: Invalid viewstate. Client IP: 74.131.236.230 Port: 4549 Referer: http://www.codeproject.com/script/Membership/Unsubscribe.aspx?tg=717772305789471&l=4 Path: /script/Membership/Unsubscribe.aspx User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729) ViewState: 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.... Ticket: . Server: Web22 2) In Internet Explorer, on the page: http://www.codeproject.com/script/Membership/Modify.aspx

FYI: I updated my profile (for the first time), attempting to change the email address for my account. When I clicked the save button, I got a webpage that showed only the plain text below: Error: Invalid viewstate. Client IP: 74.131.236.230 Port: 2376 Referer: http://www.codeproject.com/script/Membership/Modify.aspx Path: /script/Membership/Modify.aspx User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729) ViewState: 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.... Ticket: . Server: Web23