Go to the C:\Users\[user name]\Saved Games\DCS[...]\MissionEditor folder, remove the settings.lua file and let the game rebuild a new one. If you're on DCS 1.5.7 version, it will solve the mission loading freeze problem for sure, if you're on 2.1.1, it might solve it or not. Can't help with control issues, as I don't own or fly FC3 planes.
While we're at it, a tip for the future - this Saved Games\DCS location on C: drive is where all your personal DCS settings and records are stored, so if something's effed up in these, you can clean up and repair your actual game folder all day long and it won't do anything, as neither repair not cleanup scripts touch the Saved Games at all. Every now and then you'll need to remove this folder (after making a backup, of course) to narrow down various issues.
#4387056 - 10/28/1710:20 AMRe: This sim is horrible ctds galore and control issues
[Re: Darren]
lately DCS crashes a lot - many times when trying to exit after testing a skin , the sim freezes up and I am lucky in that I can ALT+CTRL+DEL to kill the process, otherwise I would lose all the other stuff that is open.
you should not let these CTD give you the wrong impression, DCS is constantly being updated and hopefully in the near future we will get a more stable version.