HELP ! my ibook wont start after downloading 9.1 update

Hi
i decided to update my os 9.0 on my old ibook, and downloaded all the updates that needed to be installed, i started off with installing the 9.04 update, and after that was installed i ran the 9.1 update, during the installation the system promted for a reboot, and after that my ibook locks up when the "loading" bar is in the middle in the starting screen,,, i dont have much mac xpereince, so i would realy apprrecieate any help !

Hi, honkatped -
Just happened to be around.
Okay - if it boots okay with Extensions Off, then it would appear you have an extensions conflict of some kind.
Re-installing the OS would not fix that. Instead, it will take a bit of work to find what is causing the problem - it may be an incompatibility with some 3rd-party software item.
First, restart - immediately hold down the Spacebar, keep it held down until Extensions Manager opens; it should do that just before extensions start to load (just before the march of icons across the screen starts).
Once Extensions Manager opens, select Mac OS Base from the Selected Set pulldown menu near the top of the Extensions Manager window. Then continue the startup.
If that boots okay, select Mac OS All as the Selected Set in Extensions Manager, and restart. If that boots okay, then some more work will be needed to isolate the offender. Let us know how it goes to that point.

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HELP ! my ibook wont start after downloading 9.1 update

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