Freezes at purple screen

[smithy14]

I load from “Try Ubuntu” in 12.10 and it freezes at the purple screen (no desktop showing) but is logged in because certain commands work - sreenshot and control, alt, delete logs out and allows correct shut down.
I have been using Ubuntu for over a year now on an 11 year old computer for payments, banking, etc. and this computer is used for nothing else. It has windows XP loaded on it but I use an Ubuntu live disc (downloaded) and 11.10 and 12.04 have always loaded correctly (an occasional hitch but reloading alway worked). This older computer has a Radeon 9000 graphics card.
I have tried thie live disc on my newer computer and it boots in all the way. The newer computer has an Nvidia GeForce 7025 graphics card.
Anyone know a work around?

[windscape]

Hi,

The Unity desktop environment in Ubuntu 12.10 requires a video card capable of modern hardware 3D OpenGL acceleration, which the Radeon 9000 is probably incapable of. I suggest trying the options on this sticky thread related to the topic.

If those don't pan out, I suggest using a more lightweight version of Ubuntu, such as Xubuntu or Lubuntu.

[smithy14]

Thanks Windscape.
I am working through the various shortcuts etc and will post if i find what works

[sandyd]

Merged Threads
Please click 'new reply' on the thread instead of 'new thread' in the forum

Thanks!

[smithy14]

Thanks Sandyd. (I will get used to it)
Thanks Windscape and the others.
Have tried some of the suggestions but can get no joy.
I will use the newer computer.