Can't install Ubuntu on my PC

[subin sam]

hello Friends mine is A HP DX2255 RX331PT Buisness PC. My Problem is I
cannot install Ubuntu. I tried the 9.04 too. But the same old problem. i
cant even run  the live cd.
when i insert the cd and when i boot the cd the following things happens on
my pc

[1.594944] sata_via 0000:00:08.1 : invalid PCI BAR 5(sz0x01 val 0x0)
[6.768136] ata1.00: failed to set xfermode (err_mask=0x4)
[26.804012] ata1: SRST failed (err no = -16)
[36.816011] ata1: SRST failed (err no = -16)
[71.860011] ata1: SRST failed (err no = -16)
[76.888011] ata1: SRST failed (err no = -16)
[76.888061] ata1: reset failed giving up
[96.924011] ata1: SRST failed (err no = -16)
[106.936011] ata1: SRST failed (err no = -16)
[141.980011] ata1: SRST failed (err no = -16)
[147.008011] ata1: SRST failed (err no = -16)
[147.008061] ata1: SRST failed (err no = -16)

Loading, please wait...

Busy Box v1.10.2 (ubuntu 1:1.10.2 - 2ubuntu7) built - in shell (ash)

Enter 'help' for a list of built in commands

(nitramfs)



then nothing happens.

what to do now? please reply me if you can help me.
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