Drivers do not support my monitor,IIYAMA Iiyama ProLite E2200WS, resulting on black screen.

Hi all,
Been told to seek help here by the Nvidia customer care guys. this is my problem and what I initially asked them:
Current and previous Nvidia drivers do not support my monitor a (IIYAMA Iiyama ProLite E2200WS). is there a way to force my graphic card to output at 1680x1050 (native resolution) or another simple solution.
If I use the Nvidia driver at present the Computer boots to a black screen. the only way to remedy this is to connect the PC up to my TV (The drivers work perfectly then!!!) I am currently using the Nouveau open source driver, which works but is buggy for gaming.
GTX650 on Ubuntu 14.04lts
Be grateful for any assistance

Can anyone help with this, or point me towards somewhere that might be able too…

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