TV loses sound. Press Pause, it comes back. How do I fix This!?

I have purchased a Vizio 42 LDC, new cheap Blueray player and 2 HDMI cables (Cheapest ones) about 3 months ago. At least once or twice an evening, while watching either Blueray or DTV (both using my HDMI cables to recieve signal), the sound cuts out. it will not come back until I press pause, then play and it is fine again. Could it be my cheep HDMI cables are not keeping up with the sound information? It is a processing problem with my TV. Basically, what component should I take back and get replaced?