I have a 4 port with the 2 port BIOS installed hooked up with RF to a 20" Sony Wega flat CRT. Most games on my AtariMax flash cart looked great until I compared the ROM on the AtariMax to the same game on an OEM cartridge. Everything becomes more vivid on the actual game cart on my system. Also some games like Beef Drop, Pac-Man, Krazy Shoot-Out and others have graphical glitches that are not present on the OEM cart, while other games like Scramble, H.E.R.O., and all 8-bit conversions look great on the AtariMax. I have a 2 port that did not experience any graphical problems on the AtariMax, but the problem with the 2 port is that although it has a very nice RF signal, when compared side by side, the 4 port RF picture is just a bit more clearer, sharper and more colorful. Are there any pundits out there that can explain this phenomena?