i bought a DECENT AVR 1000 va, and i bought a new cable DVI-D to DVI-D. i have a BENQ GW2255. when i switched from VGA-HDMI to DVI-D- DVI-D connection, i got this irritating problem where my monitor turns on/off for a sec. now i switched back to my old connection and the problem is gone. my VGA is R9 380 (i never use the DVI-D slot for 10 months) is it dust or something. does anyone have this kind of problem??