I HAVE FINALY SOLVED the tearing on the screen, even with v-sync turned on.
Step 1: Download Rivatuner and install it (nevermind the driver error if in windows7) Step 2: go to the installed folder and run the aplication D3DOverrider Step 3: Force Triple Buffering and V-sync (on the right side of screen) and minimize aplication Step 4: Run Divinity2 in Windows XP compatibility mode (if runing windows 7) and disable desktop composition Step 5: Enjoy no Tearing in div2