10.2.1 doesn't appear to have fixed the muted sound problem/effect on my iBook (700MHz, 14 inch) that was introduced with 10.2. Maybe it isn't defined as a problem. Are the sound volumes back up under 10.2.1 for other iBook users out there?
10.2.1 does appear to have fixed the annoying aesthetic problem whereby "aqua" blue buttons were appearing when the desktop and general preferences were set to "graphite" mode. Cordially, Richard Kay