I got l620 2 weeks ago and,some things are missing,i got it win 8 and yes i update it to won 8.1 denim...and in settings list i dont have option for glance screen,and doble tap to wake options at all,wich is strange...and i had l620 before and the touch was perfect,but now it is bad,almoust as on my l535 that i had for several months,and i know that l620 have better screen(clear black etc )...any guess??