the way it sounds is we shouldn't even try to update to 10.5.4

No, I installed it again, (finished at 2:20 am) and it still freezes if you click to often on the desktop. Reminds me on Workbench 1.4 alpha on the Amiga, if you click on the Workbench background you always got an error message in the menu bar. But this thing had a lot more errors... real fun for a beta-testing freak like me ;-)

snow leopard
 

i havent seen anything on ADC for snow leopard or at least the build you mentioned can some please confirm the build number