Re: What to do when switching between NVIDIA and AMD?
just plug your monitor into a laptop or your brothers computer instead of switching GPU's to narrow out a monitor. If you do choose to do the GPU way. Uninstall the drivers via control panel > programs and features then navigate to C:\Nvidia\drivers\ and delete the 285.62 folder or whatever version it is.
CPU - I7 2600K 4.5 GHZ
RAM - 8 GB DDR3 1600mhz
GPU - GTX 570 Classified