Dude, those are "Vertical lines" (not horizontal) seen when there is no image to display OR with a poor video signal from a poor cable/cable connection. A good quality cable or a better connection should get rid of them, I've been told. The MK 2 puts out both an analogue signal (vga) and a digital (HDMI) signal. The D-DVI will give the best signal if your monitor accepts it; my Amy monitor has HDMI input and VGA input, so I use an A-DVI adapter, as my RTG board uses VGA and this allows a monitor switch. A poor switch will give you the same lines. When needed I can change to a D-DVI to HDMI adapter, but this means changing the input using the monitor's remote -- which I find annoying. Back to thread, a poorly shielded cable will give the same lines. You can recheck this as this was talked about on the web even before they reached the market.
I am pretty sure it is not the Amiga (they only show up with the MK 2), and it has been discussed as a signal issue -- the digital DVI will send data not wavy signals and this should bypass most shielding problems. I have OK cables myself but see these faint Vertical lines when I'm waiting for a real signal. If it were not 05:30 here and I was not typing in bed on my iPhone I would check my D-DVI output to see if even my faint lines are gone; but I can do it later if you need confirmation
the vertical lines on the MK II using the VGA cable are not due to a low quality switch or cable but due to the fact that the pixel clock needs to be set differently via the (unreleased) configuration tool. You may or may not see it to various degrees depending on the monitor.
I ended up getting this monitor (for my notebook) and i briefly tried it with the Indivision MKII and it seems to support every video mode I tried on the HDMI. The only annoying thing i found so far is that every time the amiga changes resolutions you get an annoying message on the monitor informing you that the resolution is not optimum and you have to press a button to get it to go away... Not found an obvious way to disable that.... thanks for the info samsung. Sometimes I wonder if people ever use the products they design, but after playing with Windows 8, i'm convinced they don't.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824001555I really got that monitor for my notebook computer and I'm pretty happy using the amiga on the 19" Septre 4:3 monitor i have it connected to now. I use the VGA as the DVI does not work with that monitor. I also get the lines on that monitor, but the Indivision AGA is still the best and I love it...
