Hi guys. I'm currently using ubuntu version 11.10 and ı want to install 10.10 on my pc but ı am a new user of ubuntu and ı need some help. what should ı do ?

Burn the LTS (long-term support) version ) 10.04. Not so sure about 10.10

---------- Post added 12-21-11 at 06:27 PM ----------

Oh and install as no marl

Back up any crucial data, if you've accumulated any, to removable media, then install from scratch. Trying to downgrade an existing install is not worth the trouble likely not to succeed.

Once you upgrade Ubuntu you can't downgrade. Back-up all your files and your software packages using the APTcd.

Ubuntu 10.10 is more stable than 10.04. My laptop's touchpad and sound didn't work, but it was all fixed when I installed Ubuntu 10.10

Be aware that Ubuntu 10.10 will reach end of life (EOL) in April 2012.https://wiki.ubuntu.com/Releases
So after April there will be no more security updates for 10.10.
If Ubuntu 10.04 LTS (long term support) will work for you then that may be a better choice since it will receive updates until April 2013.
Why do you want to downgrade to 10.10? Did you do a clean install of 11.10? Or did you upgrade from a previous version? If you developed problems after a dist-upgrade to 11.10, then perhaps a clean install of 11.10 will help. I always do clean installs of new versions of Ubuntu and I never have problems.
Write back if you need more help.
And welcome to the LQ forums!

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