G4 iMac 17" flatscreen, 800MHz, 512MB RAM. Running Mac OS 10.3.9 and Fedora 9. To see if I could change settings, I switched from autoconfigure on the display to Apple iMac LCD 17. Now the picture isn't as sharp and the icons on the desktop are just as huge as when Fedora 9 installed. How do I at least get back to the sharper autoconfigure setting or even some way to set it to a more normal sized desktop? (I have reduced zoom level but I'd still love to have the sharper look back and, if possible, the ability to use the normal screen resolution settings the Mac uses.)
Also, I had sound (but no network) with Ubuntu 8.04.1 and with Fedora, I now can connect to the network but have no sound. Any known ways to get around this quickly (and preferably easily)?