Unstable as Hell! 1052 isnt not really reliable

[xan]

just another screen of death with the different languages to restart the machine!

i even can not copy a clone from the install-partition to a NTFS/FAT32 or something else. not with CCC or superduper.
in my eyes its the problem of managing large files through 1052 leopard. what can i do? didnt finish the complete setup and config of the system but its even now so unstable.

please help. 1051 was more stable than 1052 rev1

amd x2 3800+ (works, 2 CPU in activity monitor but not in sysprofiler)
msi k9a with sb600 (works)
x1900xt (works)
alc883 (not working yet)