cant install ubuntu

Try to add acpi=off at boot to the kernel parameter.

"if something go wrong at startup of Ubuntu live installation when you see the first cd menu like this http://i18.tinypic.com/6tzzndc.jpg pressing F6 you can put useful startup kernel boot parameters as showed here
https://help.ubuntu.com/community/BootOptions

Hope this helps

Then...

Some suggestion and tips to solve install issue...

- if you have more than 4gigabytes of ram and you want run 32 bits Ubuntu release please read:
http://ubuntuforums.org/showthread.php?t=853678

- Minimum system requirements to install Ubuntu 8.04.1 https://help.ubuntu.com/community/Installation/SystemRequirements

- Please check the md5sum of your downloaded Ubuntu .iso image file, here the https://help.ubuntu.com/community/HowToMD5SUM howto, and compare with http://releases.ubuntu.com/8.04.1/MD5SUMS

- be sure to burn your cd at lower speed you can do usually 4x here an howto https://help.ubuntu.com/community/BurningIsoHowto

- Please also check the md5sum of your self burned cd. https://help.ubuntu.com/community/HowToMD5SUM

- then to be sure your ram is ok, boot from Ubuntu live cd main menu and at first showed menu, select the item "Memory test" to test your pc ram memory

- Here the steps to install Ubuntu 8.04.1 https://help.ubuntu.com/community/GraphicalInstall

- Watch this video that show howto install Ubuntu on a pc with Windows: http://screencasts.ubuntu.com/Installing_Ubuntu_with_Windows_Dual-Boot

- if something go wrong at startup of Ubuntu live installation when you see the first cd menu like this http://i18.tinypic.com/6tzzndc.jpg pressing F6 you can put useful startup kernel boot parameters https://help.ubuntu.com/community/BootOptions as showed here

Try to perform the "Memory test" and the "Check cd for defects" to be sure the cd is read without errors by the destination pc cdrom driver

- Booting from Ubuntu live install cd:
 * if you are in trouble with screen graphic user interface
   (usually the screen is black with a blinking cursor or screen out of range message):
- first try to dynamically change screen resolution please the press CTRL + ALT + "+" and/or CTRL + ALT + "-"
- Try to restart the graphic layer press CTRL + ALT + BACKSPACE
- Here the basic step required during install process http://www.howtoforge.com/the-perfect-desktop-ubuntu-8.04-lts-hardy-heron

If you are still in trouble... please reboot your pc and starting with Ubuntu live cd please try to put some common Ubuntu kernel live cd options you can find the boot options howto here: https://help.ubuntu.com/community/BootOptions

Remove the "splash" and "quiet" options to see more boot infos message and/or errors.
Then try some commons parameters by putting them one by one or together:
noacpi nolapic nodma all_generic_ide

If this don't work i suggest you to download and burn on a cd at lower speed you can do (4x), here an howto https://help.ubuntu.com/community/BurningIsoHowto, the Ubuntu alternate install cd iso image ( ubuntu-8.04.1-alternate-i386.iso ) you can download this cd from here: http://releases.ubuntu.com/8.04.1/

If you are in trouble to download you can try to install and use a torrent client Deluge http://www.deluge-torrent.org/downloads.php to get your desired Ubuntu iso image http://releases.ubuntu.com/releases/8.04.1/ please select a .torrent file

*** if you are installing in dual boot mode Windows + Ubuntu

Please make sure you Windows partition have no errors on it.

Booting in Windows force an a complete hard disk check.
Then reboot again in Windows and make a clean shutdown.
Be sure to boot in Windows twice and to get a clear Windows shutdown.

***

Always useful is the online Ubuntu doc https://help.ubuntu.com/8.04/

Hope this helps

nope. tried this and several other options from the link you provided and all lead to the same thing -

BusyBox v1.1.3 (Debian 1:1.1.3-5ubuntu12) Built-In shell (ash)
Enter 'help'...

I hit ctrl+alt+delete and I get the following message

trying to free already free IRQ9....

I believe my computer only have 126MB of RAM - is that the problem?

I forget Xubuntu link: http://www.xubuntu.org/get

Linux for low ram machines:

http://www.damnsmalllinux.org/

http://vectorlinux.com/

http://www.puppylinux.org/

http://www.linuxquestions.org/questions/linux-distributions-5/suitable-distribution-for-my-low-memory128-mb-pc-463275/?s=58bba8089262c319444f6b487da481e3

Thanks marcobra, that solved my question.

Very helpful and prompt. Thanks