You might want to try Xubuntu. At least mine went smoothly.
I've wrote a guide of it. Hope that can help you.
Hello !
I need help installing my video drivers
I have two AMD ATI Radeon 7770 HD First time I use the default additional drivers then i reebot and give me a black screen
then I use this guide
https://help.ubuntu.com/community/BinaryDriverHowto/ATI and happen the same thing
and heard that the 7000 series not supported yet ( but that was on Feb 2012 ) and i found this :
http://support.amd.com/us/kbarticles/Pa ... pport.aspx ( so i use it on the guide that i show before )
what can i do ? please
Linux mind 12
Dual core
4 gb ram