Belkin has agreed to replace the cable. It has a lifetime warranty. Found this on the Blue Jeans website that might shed more light on the problem I had:

"In principle, HDMI is supposed always to be backward-compatible with DVI, so that any HDMI device should work with any DVI-D single-link device. In practice, although the two almost always work together, it's not uncommon to run into device compatibility issues."