Strange unhandled exception from asp.net application - Validation of viewstate MAC failed

Question

I don\'t know if anyone has seen this issue before but I\'m just stumped. Here\'s the unhandled exception message that my error page is capturing.

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Answer 1

I know you can disable the Validation of viewstate MAC, but I think if the page is not loaded you can get into more trouble. When I ran into this problem I had to disable all buttons until the page was fully loaded.