bostoneo

When I first got this product in the mail today, I hooked it up according to the manuel to my promedia 5.1 speaker set. The lcd screen displayed text. Later i showed it to someone, I turned it off and unplugged the cables from it. After i plugged them back in and the lcd screen came on but there is no text what so ever.... any solutions to this? the options work fine but I can't see the screen text, its just a green glowing screen now. Also the sub light doesnt come on anymore as well...