my son has a Older white xbox 360 with a 20gb Hard drive its the one with the HDMI though (2-3 years old)
It has started glitching when playing games though ,
it is just like the film Wreck it ralph where as characters jump and flicker and the backgrounds look strange this happens on games on disc and downloaded games also. There are only 2 games that play ok which are arcade games minecraft and another.
The menus and online videos play ok also ,i have looked online about the issue and have tried different things to help the things ive done so far are
Took hard drive out and tried it
Deleted system cache
Deleted system updates and re-downloaded to latest version
Tried numerous hdmi cables and composite cables
heres a youtube video i made of it happening if you skip to about 1 minute you can see it
From what i can make out online it may be a GPU problem if this is the case what things can i do to fix it?
I know about computers and thought about taking the console apart and clean the GPU up and apply some thermal paste is this a fix that might fix it?
thanks for any info