[MultipleParadox]

Thanks
That's what I've figured about closing an eye or not

For those that are interested, here's a somewhat funny fact:

I accidentally left the unit on all night (oops! - or the cats turned it on? O_o) and took a quick look this morning and the image was appearing much clearer. Still not crisp but I could distinguish the elevation compensation dots clearly, which I hardly could yesterday

So it either got better by staying on for a long time, or my eyes were really really tired yesterday :P