Hi there

this is my first post here on forum and i like to say that i am really exited to discover Ubuntu, but i have some problems with my hardware. I installed Ubuntu 12.10 a 2 weeks ago, then i tryied to install drivers for my GPU (ATI/Intel in a dv6 HP Notebook) and i gone wrong and i wasn't able to see Ubuntu again. So, i reinstalled the SO and now i want to know how to i do install drivers corectly. I used a tutorial from Ubuntu website i have downloaded the drivers from the same source. Can somebody link a tutorial or something like that? Thanks in advance.

PS: If you find my english offensive, sorry, i am portuguese.