If you are new in Linux world, I recommend MATE Desktop Environment...
Please, tell us what Desktop Environment are you using: Mate, cinnamon, KDE, xfce
LM17.1 Cinnamon (PC) and Mate 17.1 (Notebook) with AMD Catalyst
HP Pavilion g4-1316br, AMD Quad Core, 1,5 GHz, Radeon 6520G/7450M,
Linuxcounter Registered User #506065 (2008)