There are a number of less than optimal screenshots showing up probably from lack of knowledge, so here's some 411 on screenshots:
For a minimap screenshot don't do it from the main screen. You get the white box showing up.
Hit F3 (the military adivisor screen) and then make sure your mouse pointer is on the right, so you don't get the x,y coordinate lines.
Since many ask what to do next:
From the F3 screen with the mouse on the right, hit your printscreen button. (Or hit the printscreen on whatever you want to capture.)
Open MSpaint, PaintShopPro, or any other imaging program. There are many free ones on the net--just do a search.
Paste the image that is hiding on your clipboard (from hitting printscreen) into your imaging program. [Some allow you to turn on screenshots and then you hit a hotkey which puts the screenshot right in the imaging program].
Now crop out everything that isn't needed. Remember, the smaller the better.
You can now resize the image to 50% or 75% or whatever if your imaging program allows. Again, the smaller the better.
Add some text if you like. Pic a font/color/size that is easy to read, but as small as possible.
Some pictures look better if you now add a size 1 black border.
Now save it as a .jpeg and compress it some (like 20 or 30).
It's easy to then post this picture by clicking on the browse button on the reply message screen here. You can also upload them using the easy file upload, noting the URL, and then clicking on the IMG button near the top of the reply message screen if you want multiple pics in the same post.
Sometimes those of us with high speed internet forget about the people with slow modems and post enormous pics.
Sometime we post pics that are too w i d e. Please crop/resize your pics to about 650 or 700 pixels wide (or much less). This lets everyone scroll down through the posts without having to also scroll right and then back left again.
There are many ways to take great screenshots. This is one just one of them. Good luck and happy screenshot taking!