HELP! Repeated forced reboot while trying Safari

[AsusP5ND2_SLI]

I have Kalyway 10.5.2 installed and it boots up just fine.

 

I can browse around OSX but when I try to launch Safari, the screen turns gray and I receive the message informing me that I must reboot the system by holding down the power button or pressing the restart button.

 

Any idea what causes this or how to fix it? I've searched the forums but haven't found anything.

 

Setup:

* Dual booting w/ XP.

* Installed vanilla kernal (no options or additional kexts were utilized during or after installation).

* Both XP & OSX are partitioned on a Seagate 320gb IDE hd

* Asus P5ND2-SLI mb w/ Pentium D 915

(2.8ghz dual core but my board only recognizes 1 core)

* Nvidia 7300GT (no problems)

* 2gb (2x1gb) Corsair XMS2

 

Thanks in advance!