Ok, so I finally got an HDMI cable to connect my PC to my flat screen tv. Having this ability is great, and things look great on the screen... however, it seems that every time I try and do this - the signal is fine for almost an hour then it starts to blink in and out, and it looks like it gets worse the longer it's on...... Does anyone know if this is an issue with the cable or Ubuntu? HDMI cable is fairly long and I ran it under carpet, so maybe one of the windings around something is causing a kink that is weakening the signal? Any suggestions or insight would be helpful.