Today I got 20 new cartridges. They needed some cleaning, but even after that 8 of them won't work. They all have rolling screens ( see pictures). I tried them on both my 4switch woody as my 6switcher on different channels. All of them are from 1988. Are they not compatible with my older 2600's? For example, the silver lable ms pacman and digdug won't work properly, but older silver labels in my collection with the same games work fine. I've got three Desert Falcons from 1988, but all have the rolling screen!?