Slightly offtopic. I got a 10' VGA cable to connect my home server to my TV so I can watch media files on it. There's a separate audio cable. But the computer refuses to output any widescreen-format video signals to the TV. It will only go up to 1600x1200. Selecting 1280x720 (720p) makes the TV say "mode not supported", and there is no option for 1920x1080 (1080p/i).

I tried it with my laptop, which runs Windows, and got the same thing. I then tried a shorter VGA cable I had lying around, and the laptop instantly output 1920x1080 (that is, 1080p or i) without a fuss. It worked fine with 1280x720 as well.

Clearly it's a low quality cable - how do I know what cable I can order that will support full resolution?

It's this cable: http://www.amazon.com/gp/product/B00..._prd_ttl_hst_2

Thanks for any explanations - I don't get it. I always thought a cable was a cable.