So it looks like you have a 540M - meaning you have Nvidia Optimus. This means you'd need Optimus drivers, which is Intel HD graphics drivers and Nvidia drivers (either 2 seperate packages or 1 with both drivers). Did you download the newest drivers from Asus? And just out of curiousity could you say the Intel driver version and the Nvidia version you're using?
After you have confirmed you have the proper drivers from Asus, check your Optimus settings. You should have it set so discrete graphics only turn on when gaming. One note, if you're gaming and minimize the game, there will be a very small stutter switching from Nvidia to Intel graphics, same when you open a game etc.
I'm using Intel HD 3000 graphics right now and I don't have any issues (well, screen would tear when scrolling some sites with Aero on and low CPU speed, disabling Aero fixed that).