Here are instructions how to easily make screenshots by ingame means:
- Right click in the middle of game area and select “Submit bug …” option

- Wait for dialog box with ‘Confirm’ button to appear – then click the button

- A new browser page will open (in new tab or window) – right click the image on it and select “Copy image URL” or similar – example is in Google Chrome (polish version if anybody’s wondering)
DO NOT SUBMIT THE BUG CAPTURE

Now in your clipboard you have link to image containing screenshot – you can paste it in forum post, game chat etc.
Example link:
http://176.9.72.81/reportBugs/screenCapture/134687/856520/9841.jpg
PS. If new browser tab/window does not open (between steps 2 and 3) it probably means that your browser (or some plugin like AdBlock) is blocking popup windows. In such case you must find and disable this function first.
AGM.Sarig