matlab can not recognize the device

I'm using the Image acquisition tool box (matlab 2011b) I want to get a image from ccd camera through my desktop,so I bought a DVR card and plugged the card in the main board. Also, I installed a software given by the DVR card company. I can see the video using the software, but when I try to get the video through matlab, it cannot recognize the CCD. I checked that the software is WDM driver

Does anybody can help me? :(

[Jan]

How do you try to get the video through Matlab?

[Walter Roberson]

Does the device show up for imaq purposes? What does it show up as?

[Fernando Torres]

If I typed 'imaqhwinfo', I could see 'matrox' and 'winvideo'.

then, I typed imaqhwinfo('matrox'), but there was no device.

I tried imaqhwinfo('winvideo'), but the situation was same.