Guys sorry on going a bit off topic but I don't want to make a new topic because I need help on a problem I have with my new refurbished xbox. So it's kind of a weird problem I have with my xbox, whenever I turn on my console I noticed the other day the letters on the dashboard or party screen (specially the blue top of the mini guide) kind of "glitch" out or blink. But it is even more noticeable in every recent game I play when for example in Halo the ground flickers black or invisible or my character models armor flickers. It's only on the graphics and specific objects not the complete video image. I've tried removing my HDD and unplugging the HDMI but nothing.
The only thing that seems to work is when I change the resolution of the TV the problem disappears and games play normally, but when I turn it off the problem comes back. Any suggestions? I've tried google but not luck, my 360 is a Jasper with a 203w 3 prong power supply btw.