Hit F1 and try the following or combine them;
linux vga=normal
linux noapic
linux text vga=normal
linux acpi=off
This is why I suggested noapic (from my /var/log/messages)
CODE
Aug 7 06:33:17 localhost kernel: CPU: AMD Athlon(tm) XP 1900+ stepping 02
Aug 7 06:33:17 localhost kernel: Enabling fast FPU save and restore... done.
Aug 7 06:33:17 localhost kernel: Enabling unmasked SIMD FPU exception support... done.
Aug 7 06:33:17 localhost kernel: Checking 'hlt' instruction... OK.
Aug 7 06:33:17 localhost kernel: POSIX conformance testing by UNIFIX
Aug 7 06:33:17 localhost kernel: enabled ExtINT on CPU#0
Aug 7 06:33:17 localhost kernel: ESR value before enabling vector: 00000000
Aug 7 06:33:17 localhost kernel: ESR value after enabling vector: 00000000
Aug 7 06:33:17 localhost kernel: ENABLING IO-APIC IRQs
Aug 7 06:33:17 localhost kernel: Setting 2 in the phys_id_present_map
Aug 7 06:33:17 localhost kernel: ...changing IO-APIC physical APIC ID to 2 ... ok.
Aug 7 06:33:17 localhost kernel: ..TIMER: vector=0x31 pin1=2 pin2=0
APIC is after ESR....I wonder why ESR is in mine twice?
Also try unplugging extra stuff like usb scanners, modems, and printers...they can be configured later.