F) Will it cause problems if my servers are running different resolutions?

No, but please make sure that the switch you purchase can handle the highest resolution that any one of your of your Servers/monitors will require to operate to your specifications,i.e. 1280x1024 and below are handled by all of our switches, 1600x1200 to 1920x1400 and above will require the correct KVM switch for these higher resolution, please contact Omnio Technologies for further advice.