hi, thanks for the replys, ive just tryed an iphone charger as a power supply and i still get the big square in the middle of the screen, red/yellow on top, blue/aqua below. the screen on the PI shows as normal.
hi, just got my PI B+ 512mb working with a 3.5" touch screen. i want to also use the hdmi port but when i plug in a monitor all i get are 4colours in a square, the touch screen is woring fine. any help ? Cheers Brad