Constant reboots?

[bigjohnjr]

I just did a fresh install of Jas 10.4.8 on a compaq p4 512meg ram 60 gig hd with intel chip set, on board graphics and sound.

 

Everything went smooth and is up and running 10.4.8

 

I then put the 10.4.9 jas update on a thumb drive and updated it.

 

I did not install the 10.4.4 login.

 

I repaired premissions and rebooted.

 

Now all I get is "darwin x86"

 

and the then the compaq flash screen and then "Darwin x86" and then over and over again.

 

I do not see a kernal panic, it just keeps on rebooting.

 

I then reinstalled 10.4.8 and again everything went fine, I then did the patch to 10.4.9 and blew it again.

 

Before I install 10.4.8 (for the third time) is there a way to fix this.

 

I have not tried single user mode or safe mode.

 

Any ideas?

 

Thanks