I got my local best buy to price match Costco's P502ui-B1 price since it doesn't look like Costco is getting any more stock. After some calibration it's working fantastic, I have it wall mounted and I'm using it as a PC monitor and it looks great... However, for some reason the HDMI 5 input seems to keep reinitialize itself. Sporadically the screen goes black for about a second, then the image comes back with the HDMI source, wifi bar and picture mode at the top. Anyone else have this issue? I'm on the latest Firmware.