Installed 10.4.8 and now only white start-up screen

Hi,
I used the software updater and installed the new 10.4.8 update and when it restarted, the computer is stuck on the white screen. Has this happened to anyone else? Can anyone tell me what I need to do to get into the computer?
thanks!

the first time after installing, the start up takes 3 minutes or more and then it restarts suddenly by it self....on purpose..
now did you let it finish by it self?
Ok....many of us also had blank screen problems with 10.4.7 and here is how we got rid of it:
push the start up button and immediatly after press down all these four keys:
option (alt) + command (apple key) + p + r
Then you should start up fine... BUT to avoud having to do this all the time you have to do a manual fix:
In system preferences, togle the screen settings away from the standard setting to some other setting, and then back again.
Voila.. so far it seems to work. The explanation is, that some default setting for the screen somehow got lost.
But the above fixes...fixes that
IF... next time you still get a blank screen. Turn it off by holding down the start button for 5 sec. Try Start up from the original apple dvd (insert the dvd and hold down the "c" key under start up). When the loading is over - DONT START the software install but under tools choose start-up disk, and choose the hard disk system folder. Then simply choose restart.
If you still have trouble.. you need to make a new software installation of Mac OSX.. you can choose the archive and install to save all your personal settings and files from your present home.
sincerely...peter

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