If the computer that monitor goes with is still under warranty, Gateway will replace just the monitor with no problem. I once owned a Gateway Pentium 75 (shudder) and it came with a 15" Trinitron tube. A couple months before the warranty was up on the machine, which was now disassembled, the monitor started whining. I called up Gateway and they sent me a newer model Trinitron a couple days later with return instructions/labels for the busted one.

I was very impressed with their service.