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Am trying to install ubuntu 12.04 on a pentium 4 with a hard disk that's been totally wiped clean. Have made an iso image, burned it on a cd and it has been verified. Checked to see if separate files have been burned on cd and they have. When I boot to the disk I get the word unbuntu with some progress dots, 5 min later it goes to a red screen with the mouse arrow on screen. It has stayed in this condition for over half an hour now. Help?

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Can you please add details about your computer to your post? (e.g. model, manufacturer, hardware specs) –  Aaron Dec 15 '12 at 2:37
No brand Purchased MB cpu case and other essentials, in other words it's homebuilt. It has been running windows me and then xp for some time. used a wipe program to clear hd of all data. Suppose I could open up the case and see brand of MB, type of ram etc. Is it really necessary? Thanks for the interest. erich –  Erich Dec 15 '12 at 2:47
Looks like insufficient RAM problem. How many MB/GB of RAM do you have? If you could add more details about the computer specs (such as CPU speed/GHz, graphics card/GPU, RAM, harddisk), it should help identifying the problem better. –  Inoe Dec 15 '12 at 6:24
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