After months of working with no problems with IIS on a local NT server, this morning the Web server failed. When I tried to take a look using the Console View, it responded with a "Error connecting to servera1: the data is invalid" message. When I tried to use Visual InterDev to access the files, it gave me a "There is no server on port 80 at 'servera1'". What can be happening? Thanks. (Note: 'servera1' is the name of our server).