Slow boot after blue screen and system restore

I did the updates (Security 2008-002, Safari 3.1 and others) in Software Updates and then could not get past the blue screen. Tried all the advice on these boards but none worked. So I used Time Machine to restore the system. It worked except that now the booting process pauses (on a blue screen) for about 5 minutes. Then the process completes and everything appears to be fine.
However, this delayed booting does not seem right and never happened before.
Anything I can do?
thands
Ken

What kind of incompatibility issues?
How far does the xp installation get?
What do you mean by 'uninstalling the vista bootloader'?
It seems very unusual that you can't boot from the CD anymore. Maybe double check the boot priority again, or have CD as the only boot option?
I can make XP BSOD and Reboot on my V200 by setting the SATA mode to AHCI. *no floppy = no F6 driver installation
I can't recall how VISTA reacted to setting SATA to AHCI.
Let me know how it turns out.

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Here's more on what macbig said.
Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk.
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Malvinfromny wrote:
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Kappy wrote:
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I have a MacBook Pro, it recently started freezing upon startup. It would get to a blue screen and just sit there. I've tried booting in safemode to run disk repair and still doesnt help. If I do manage to get past the blue screen, it still freezes

My mac keeps freezing upon startup. It will get to the blue screen and promptly freeze. If I manage to get past the blue screen, and open up youtube on google chrome, it will freeze before it loads youtube. I've tried safeboot and disk repair, nothing seems to work. I even tried to factory reset it but it wont connect to my internet when I reboot with power + option.. any ideas?

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.Create a data recovery/undelete external boot drive
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