cant install ubuntu

Did you MD5 check your ISO? Did you verify your CD once initially booted to? Have you ran the memory tester?

yes i did both

sr0 is your CD drive so a bad CD is what I suspected. hmmmm

Ok try disabling any unneeded hadware in BIOS (Like sound, USB, LAN etc) and try again. If not then hit F6 on the first CD boot screen and disable as much as you can there.

Hi :)

It's good to hear your cd/dvd-drive problems have been fixed.
I find that the best cds to use for this are the really cheap 'write once' cds that you can only buy in packs of 10 or more because. The more expensive cds really don't seem to work very well for this and dvd's are hopeless. Here's a guide to help make a great cd
https://help.ubuntu.com/community/BurningIsoHowto

Then try booting up from the Cd and use the option "Try Ubuntu without making changes to this machine", that should get you to a working desktop which we call a LiveCd if it works. It's a good way to check that Ubuntu will work easily on your hardware so most distros (different versions of linux) have this feature available. Ubuntu's LiveCd's Firefox should get you straight onto the internet and able to surf into here. With most distros you have to press 2 or 3 buttons but Ubuntu usually manages to pickup on your internet connection straight away :)

Please let us know how this all goes :)
Good luck and regards from
Tom :)

so i burn the cd again and got to used live. then i try installing different comp and it works but when i try my laptop i does not work. can anyone point to anyother area that maybe causing this. i boot in to vista (this is a dual boot) and cd/dvd works fine. disable anhance from sata drivers too.

disable as much as you can in bios. You could fsck the partition you are going to install ubuntu to

So you managed to get a LiveCd session working and could surf your way into here?

yes i got the live cd working fine. is after step 6 or 7 that crap out after the partition is created and begins to install it gets to 5% and the get that black screen with the error.

ok so i when to live cd and try to install thay way but when i click on install "there was in error launching application" "Details fail to executed child process Ubiquity "input/output error

I'm not sure if it will help much but is there anything in this guide that looks about right?
https://help.ubuntu.com/8.04/installation-guide/i386/boot-troubleshooting.html

i have burn the iso a 2x and i was able to get 99% of install sysytem but does not pass this for the last two hours coping installation logs it saids?

I had the same problem with burned cd so I finally went to https://shipit.ubuntu.com/ and requested a free one it worked just like magic :))

Have already tried the alternate boot cd...?

http://www.ubuntu.com/getubuntu/downloadmirrors#alternate

ok so i burn with different cd and i was able to install 32 also i change the way of partition it i created the swap first and then created the partition for install. i dont know if that has anything to do with it. but thank everyone.

Wow, nicely done :)))
Congrats and regards from
Tom :)))