Actually your problem sounds like a shielding issue. Most likely you are getting too much interference and your laptop is outputting too low of a signal for the cable to work properly. Signal strength vs. interference.... Why are you trying to run an HDMI cable 25 ft?

The easiest way to ruin an HDMI cable is to bend it too far. The wires inside the cable are very small and can easily be ruined by bending sharply.

thanks Entroper, youve just gave me peace of mind.
ive decided to get a replacement instead of a refund and investing in a better cable. ive just contacted mono price today they said theve already sent me a new one.

@DarkNight_DS
well my laptop is on my headboard, all the way across from my LCD TV.
i need a 25 ft cable to place it under the rug and run it across the sides all the way to my headboard.

i had the wall installation wire, theyre twice as thick as normal HDMI cables so they cant be bent sharply that easily.

"The easiest way to ruin an HDMI cable is to bend it too far. The wires inside the cable are very small and can easily be ruined by bending sharply."

so they are sensitive to bending? cause Katilian mentioned the theyre as sturdy as any other standard wire cable.