Westinghouse LTV-40w1 HDC 40.02 in. LCD HDTV "pro mac detected" Questions

...Pro (MacBookPro4,1). I have a DVI to HDMI cable that I have going directly from my Mac into HDMI 1 on the Vizio. The Mac detects the Vizio (it shows up in the detected displays) and I have mirroring ...

...pro with a DVI-D to HDMI adapter cable. The autosource briefly detects my computer, then gives a "no signal" indicator. Meanwhile, my computer detects the display, but I have no control. It sounds ...

...Pro to my Westinghouse VK-42F240S television. i've connected the two with a DVI to HDMI cable, and the tv indicates ''detecting'', while the MacBook blinks, but then the tv says ''no input signal'' ...