Hi again everyone! Long time no post. But here I am. Right now, I'm using my laptop (Dell Inspiron 6400) in dual monitor setup. My monitor is the I-Inc iS220 (22inches) and is connected to my laptop via VGA. The display card is the mobility radeon x1400. When I connect my monitor to the laptop and use dual display (extended desktop) I find that every once in a while, the screen blinks very briefly. This mostly happens on the 22" display, but sometimes happens on my laptop as well. If i disable my laptop display (manually, or by closing the lid) the blinking doesn't seem to happen. The blinking doesn't happen if I'm using only my laptop. I'm just wondering if anyone has come across this before and if there's something I can do to fix it?