Make sure the DVI-I works in your setup.
DVI-D - True Digital Video http://www.datapro.net/catalog/DVID.html
DVI-D cables are used for direct digital connections between source video (namely, video cards) and digital LCD (or rare CRT) monitors. This provides a faster, higher-quality image than with analog, due to the nature of the digital format. All video cards initially produce a digital video signal, which is converted into analog at the VGA output. The analog signal travels to the monitor and is re-converted back into a digital signal. DVI-D eliminates the analog conversion process and improves the connection between source and display.
DVI-I http://www.datapro.net/catalog/DVII.html
DVI-I cables are integrated cables which are capable of transmitting either a digital-to-digital signal or an analog-to-analog signal. This makes it a more versatile cable, being usable in either digital or analog situations.
Like any other format, DVI digital and analog formats are non-interchangeable. This means that a DVI-D cable will not work on an analog system, nor a DVI-A on a digital system. Make sure that you know what format each part of your equipment is before you purchase any DVI cables. Only equipment with a DVI port labeled 'DVI-I' will accept both a DVI-D and DVI-A source signal.
WHAT ARE SINGLE AND DUAL LINKS ?
Single:
http://www.datapro.net/products/1141.html
Dual:
http://www.datapro.net/products/1142.html
The Digital formats are available in DVI-D Single-Link and Dual-Link as well as DVI-I Single-Link and Dual-Link format connectors. These DVI cables send information using a digital information format called TMDS (transition minimized differential signaling). Single link cables use one TMDS 165Mhz transmitter, while dual links use two. The dual link DVI pins effectively double the power of transmission and provide an increase of speed and signal quality; i.e. a DVI single link 60-Hz LCD can display a resolution of 1920 x 1080, while a DVI dual link can display a resolution of 2048 x 1536.
HOW DO I KNOW WHICH CABLE TO USE?
Determining which type of DVI cable to use for your products is critical in getting the right cable the first time. Check both of the female DVI plugs to determine what signals they are compatible with.
* If one or both connections are DVI-D, you need a DVI-D cable.
* If one or both connections are DVI-A, you need a DVI-A cable.
* If one connection is DVI and the other is VGA, and the DVI is analog-compatible, you need a DVI to VGA cable or a DVI/VGA adaptor.
* If both connections are DVI-I, you may use any DVI cable, but a DVI-I cable is recommended.
* If one connection is analog and the other connection is digital, there is no way to connect them (regardless of connector type).
If you still have questions, look at:
http://www.datapro.net/techinfo/dvi_cables.html