blocky

hi champs! am a newbie - so please be gentle. Apologies if this problem has been posted elsewhere that i didnt find in my browsing. Here goes... I just inherited a japanese top loading Neo Geo CD and having a problem getting the games to display properly. when they load - they look greyed...

Hi Guys, First post so be kind! I've not put this in the tech forum cause it might just be me being silly. I have a 42" Plasma, Im running my JAP CD through a scart lead I brought from ebay. Everything works fine but the image on the screen is kinda blocky, when I see footage on youtube ect...