System freezes on almost a daily basis but:
- logs show nothing
- memtest 2 full iterations run clean
- systester runs clean for 40+ minutes
- temp is well within normal range
Just happens no particular activity causes it

HW
mb Asus p5b deluxe/wifi
cpu Intel E6600
ram 2x1gb Corsair pc8500 (ddr21066)
gpu PNY 7300gt pcie
SW
bios is latest
openSuse 11.1 x64 with all latest updates
KDE4.3beta
Nvidia drivers 185.18.29 (latest stable, but
changing doesn't matter)
Kwin affect off or on, no difference

Any ideas?

thanks,

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openSuse 11.1, KDE4.x Factory, Opera weekly