So I noticed on the side of my 7800 there's a big square hole where you can see right inside the console. I wondered what it was so after a little digging I found out on early models there was a expansion port there but when Jack came along he got rid of it to cut costs. I try to keep my consoles as dust free as possible but I have to imagine a lot of stuff can get inside a hole that big. Just wondering if there's supposed to be a cover there or is that the way they came? If there wasn't a cover what do you guys do? Guess a piece of tape would work if nothing else.