Well i fear its the same bug i had a while back. But i’m not sure. (That’s why i asked for a screenshot.)
Which version of kicad are you using? (nightly build or a stable version? Or even self compiled?)
Under what operating system? (I think there is a problem with the gtk version under some operating systems)
Graphics card? (And driver, I think there is a known problem with ati graphics cards.)
In other words we need a bit more information to help you.
Slow down a bit there, little fish and don’t run needlessly into walls
KiCAD EEschema (schematic part of the system) is old and currently undergoes a rewrite (not in the public releases for another year or so), while as PCBnew (layout part) is ‘state of the art’ but still with some quirks in the OpenGL part (especially on linux).
KiCAD out-of-the-box tries to use the github repo for symbols+footprints.
For some this works, for others the link files/setup is outdated and it’s broken in the version they got for their OS.
We can guide you through to get your KiCAD set up to work, but you have to be a bit patient for this to not annoy us here.
So, can you get us the detailed error message for the missing components problem you got?
PS: KiCAD is run on many systems and in different setups by the ones who try to help, so we need a lot of detail to work your particular problem as we can’t sit in front of your machine.
PPS: I also took the freedom to adjust your thread title to get knowledgeable people drawn in that might know a solution for your particular problem/OS with the crosshair ghosting.
If you’re in a hurry, check out Matt Venn’s 15 minute videos in 5 parts.
If you have some time, look at Chris Gammell’s awesome series - Getting to Blinky 4.0 which covers all of the new stuff in KiCAD 4.0
@Andy_P I was afraid of that. I guess many hardcore programmers like the decentraliced way of the mailinglist, but myself i have mostly found them a bit incomprehensible. I really prefer forums or even IRC channels or the like. I think ill make do with what news trickles down to here.