Dreamcast Not Reading Games

I bought a Dreamcast off of a friend, and works fine with most my games. Unfortunately, with THPS 2 and Shenmue, I have to turn the Dreamcast upside down to get them to work. They still occasionally freeze from time to time. Skies of Arcadia wouldn't even load for me. I tried going here: http://www.geocities.com/zeph340/ and doing what he said, but that doesn't help me either. From what I have learned, it is not good to flip your Dreamcast upside down, so I won't anymore, but I really want to play these games.

It won't damage your DC that much although it may put strain on the laser being upside down but if its broken any way who cares?

I suggest doing a re-cab on the laser, like in that site, but often they can make matters worse, make sure you test with a disc your not too bothered about because if you turn it up too high, it can cause radial disc burns.

Have you tried using a standard CD lens cleaner disc yet?