Hello Everyone, Macbook Pro (Late 2013) 10.9.5 Mavericks Mini displayport to VGA adapter to beamer (I searched and couldn't find anyone with this problem) I recently bought a mini displayport to VGA adapter cable to use my beamer as an extra display. The first 24 hours it worked and I could use the beamer as an external display which was great. Only the next day it wasn't working and the beamer kept saying NO INPUT. My roommate has a windows laptop with VGA port and it still works on his laptop (before the incident and after). I used the same cable only with the mini displayport to vga adapter inbetween it. I tried everything to solve it. - Go to display and look for external desktop of mirroring (this didn't work because my macbook doesn't recognize it) - I did a PRAM reset - Did a SMC reset. - Tried the same thing on another beamer and it didn't work. With my roommate (his laptop) everything just works. - and finally i bought another more expensive Apple mini displayport to VGA adapter and it didn't work also - I repeated al the previous steps with the new adapter (PRAM, SMC, DIFFERENT BEAMER, DIFFERENT CABLE) Still it doesn't work. I really don't know what to do now. I just worked the first day and know my macbook doesn't even recognize it. doesn't matter which of the 2 ports (on my macbook) I use. I hope there's is someone with a solution because I just don't understand why it's not working or ignoring my cable.