I have a erport that goes out to multiple users on Tuesdays and Thursdays that was working fine up until a week ago. Suddenly the report server fails with the error cannot load Teradata extension. I'm not using Teradata. I understand the fix is to comment out the extension in the Extension and SemiticQuery sections of the configuration file, but I don't understand why it was working fine and now it's not. We had a power outage last weekend, but this started before that so it's not related to a restart of SSRS.