Snow Leopard very slow to boot
I have an older Macbook with a 2.16Ghz Intel core duo processor 2Gb 667 DDR2 SDRAM and a 120Gb HD (111 Gb free)
I have just installed Snow Leopard over Tiger from DVD. After the install the boot-up time was 15mins! After backing everything up I repartioned the drive and did a clean install, the boot-up time is now 10mins!
Once up and running the computer is fine, everything work as expected, although I have not yet installed any other software so it is currently "factory fresh".
I've checked the HD (as best I can) and can find no errors, it runs quietly without abnormal vibration etc. and disk utility reports it as fine.
Can anyone sugest what the problem is? 10 minutes to boot up cannot be normal, my old 1986 Amstrad, booting from a floppy drive, only took a minute to boot so I'm sure that Apple could beat that.
MacBook, Mac OS X (10.4.11)