Sunluxy 8Ch Dvr Vga

[mathew91 0]

I brought a 8ch Sunluxy Dvr set off ebay as they were very cheap when compared to the next more expensive model but i cant seem to get my spare screen to work through the vga male output on the back, it also has a AV output which works fine with our television but its always in use so i try to connect my old 22 inch benq lcd screen using many different cords from vga to dvi with adapters and yet it doesnt want to turn the benq screen on at all, i no the benq screen is fine i looked through the manual but it had very little info about anything and there support tech dont reply running out of options dont want to have to get a second small screen with av compatibility just for the security cameras is it something in the options or is the vga only compatible with certain screens??