Cheers for the info matt
Seems the 280X will be getting returned asap.
looks like i'll have to wait for one of these now.
Seems like it does have a Dual Link DVI after all mate. At least according to what i found here.
Hot off the press Mr PG Tips
MSI has gone with its own design for the card's outputs, with the standard combination replaced with two mini-DisplayPorts, a dual-link DVI-I and an HDMI connection.
http://www.bit-tech.net/hardware/graphics/2013/10/09/msi-radeon-r9-280x-ge-oc-review/1
Well at least it has one dual link DVI for 1440p/1600p. That's all i use, but i only have one screen.