Printers won’t load in NT4

I have an NT4 Server that will not let any printer drivers load. I suspect registry or file corruption, but don’t know how to fix. Any driver I load, even the generic text only driver, will give the error: “Printer driver for Windows NT 4.0 x86 could not be installed. The parameter is incorrect.” It also doesn’t matter which port I choose, even file. Any Suggestions?