Thanks for the useful link!
I'm having the same problem on an AMD turion laptop: The clock is always messed up and the keystroke repetition is way too fast.
The "no_timer_check=0" addition didn't solve it but the "acpi=noirq noapic" seems to have done the trick. Also it looks like a former error message: APIC error on CPU0: 00(40)
APIC error on CPU0: 40(40)
has disappeared from the boot sequence.
It's all good but I'm wondering what this all means? As far as I know APIC is some advanced interrupt control thing. Did this mean that with this parameter APIC is disabled? Have I lost some ACPI or APIC features?