my monitor model is acer P193W . The problem is i am not able to use my monitor as a tv . I want to use the monitor as tv with external tv gard . when ever i try to use my monitor with tv gard it stop working . It don't display anything. why i am having this problem ? can u give me any solution ? or this model acer monitor work with other brand tv card . if it not why not? please let me know .