panic: pmap_enter

[NagasH]

Hailings, freebsd-questions.

I downloaded FreeBSD 5.3-RELEASE-i386-miniinst.iso

when i try to boot from CD i get this message

Mounting root from ufs: /dev/md0
panic: pmap_enter: invalid page directory pdir=0x101e063,
va=00xfff2a000

Uptime: 2s


Sorry.. My english is bad :) I don't know much.

configuration:
AMD AthlonXP 2600+ (@nForce2)
768Mb RAM
Radeon9600XT
HDD Seagate 7200.7 160Gb (С,D) + 120Gb (E,Unallocated (for freebsd))
CD-RW+DVD Sony CRX320E
+ modem, audio, e.t.c.

Plz. Help!
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 NagasH                          mailto:NagasH-rv at yandex.ru
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