Installation probelem on windows XP

When I'm installing ubuntu 11.04 on window XP, I observed the following message on the screen after restarting the PC
Kernel panic-not syncing IO-APIC + timer doesn't work Boot with apic =debug and send a report. Then try booting with 'noapic' option.

Pid : 1, comm: swapper Not tainted 2.6.38-8 generic #42Ubuntu
call trace:
<c1507054>] ? panic +0x5c/0x562
<c179c7bd>] ? setup_IO_APIC+0x52a/0x562
<c1798bb1>] ? native_smp_prepare_cpus+0x19c/0x1df
<c1003046>] ? ret_from_fork+0x6/0x1c
<c178d850>] ? kernel_init+0x68/0x1c8
<c178d7e8>] ? kernel_init+0x0/0x1c8
<c1100367e>] ? kernel_thread_helper+0x6/0x10