Hi every one, Greetings from Mexico; i recently get Ubuntu on my netbook, an acer aspire AOD257, i did some little research about the "best" OS for such a small prepossessing capabilities, i got info on meego, Ubuntu remix, and some others. i make up my mind and decide that the windows killer will be Ubuntu remix , so i installed the 10.10 version, i try it, and got the upgrade message to get the 11.04 version, so i did. This work pretty decent (and a lot better than the factory original OS), i download some apps, i am a music fan, and realize that there was no sound for some apps like tux guitar, i didn't worry, i know that is part of my learning process with this new OS and environment. then i start to personalize my system and i was really happy with all the fabulous stuff in it; but i received the notification for a new upgrade the infamous 11.10 version, i set it on my system and after the installation realize that i had lost my personal stuff, no more screen saver, there bugs on the system settings app, so i download some apps hoping fix this; but now i have more bugs, the Ubuntu software center just shows a white screen when i click on it, and my screen has gone dark even when i have the full bright setting, so i'm wondering if is a good idea to upgrade to the 12.04 version? will this errors get resolved if a do so? Help guys.