Running a Dell Inspiron N4110 Windows 7 Home Premium 64-bit i-5-2410M CPU @ 2.30 GHz 2.30 GHz So I broke my screen back in December got a replacement one and tried to fix it myself. Apparently as computer tech guy told me not only well the screen need to be replaced, so would the mobo. I had to leave the laptop and return to school and would get upgrades through my mom. So MONTHS later having gotten the laptop back and turning it on I noticed a few things: 1.)My 'sleep' option is greyed out. 2.)I have no sound, I get the following message when I look at the bottom where my volume speaker symbol is: no audio output device is installed I have tried everything, I have went through all the drivers, BIOS, general settings, and CMD. I can't get it fixed. So I'm thinking, did I get a bad mobo? I am asking the tech guy to send me the EXACT model and make of everything used so I know what happening. Until then, any thoughts?