Mac freezing

Ok people i got a question is it normal (or does it happen to most of the people). That mac just freezes with that message saying restart your computer? Cause i have this just at random times.
And when i install the .kext OSx86 tools tells me to install they work fine but when i do a software update (nothing like going from 10.5.5 to 10.5.6 just those iTunes updates) it won't even boot.
And the software updates work fine when i don't install the .kext
And here come's my second question. When i install Warcraft 3 it start's but it only gives me some flikkering and a black screen is this just because of OSx86 or is it because my graphics card is installed incorrectly?


Sorry if my english is bad. I'm dutch :P

Hardware:
Intel Q6600 2.4Ghz
4Gb DDR2 1066Mhz
4Core1600Twins-P35
Chipset: Intel P35/G33/G31
Chipset: Intel ICH9
Graphics: Asus 8800GT 512Mb

first of all, no thats not supposed to happen lol,

if world of warcraft flickers and then bombs out, i'd suggest that the graphics card isn't installed correctly.

can you post your spec here:

Hardware:
Intel Q6600 2.4Ghz
4Gb DDR2 1066Mhz
4Core1600Twins-P35
Chipset: Intel P35/G33/G31
Chipset: Intel ICH9
Graphics: Asus 8800GT 512Mb

Using: iDeneb v1.3 10.5.5 upgraded to 10.5.6 using iDeneb's upgrader.

Packages installed in customization:
All language files
Extra fonts
X11
Standard Vanilla Kernel 9.5
Audio: ALC 8888
Graphics: Nvinject 2.1 512Mb
AppleSMbios 1066Mhz DDR2
Achi fix (don't know if that was exactly the thing i clicked but it sed it fixed some problems with the 4core1600Twins-P35).
cpu-1fix
Intel ICHX fix
JmicronATA fix
Realtek RTL8201CL ethernet

And that's about it