I have a Dell HP Pavilion dv4-2165dx. For a while now my computer has been acting strangely(pop ups all the time even when I am not on the internet, and files I deleted off the desktop coming back without me restoring them). Yesterday my internet wouldn't even work(I use an ethernet cord for my dorm). Today its working, but only when I start the computer in safe mode. I have four options when the computer starts up. safe mode, safe mode with networking, safe mode with command prompt, and normal mode. It works in safe mode with networking. If I try normal mode, as soon as I sign in, the screen goes dark(I can still see the cursor on the screen though but everything else is black). Can anyone help...? I know NOTHING about computers so could someone walk me through what to do? And I have windows 7.