That's strange, the version I uploaded to the Zone has no problem with the graphics in Sam and Max on my AGA WinUAE setup (it even plays Full Throttle). Can you upload some pics of the graphic issues your having with it?
Also, what is the speed and screen tearing like with this build on your 030? It's not speed optimized yet but for something like the full throttle intro it will only get about 10% quicker.
I've still got to get the double buffered code working so it will 'tear' a bit at the moment.
It might even be your copy of Sam and Max, you can download a new demo here ->
http://www.lucasfiles.com/index.php?...8f9ff4dcf75ad6