4.0.x worked fine but 4.1.3 demo won't run at all on Thinkpad X220. I tried both, x86 and x64 build, with no success. I suspect my trusty Intel HD 3000 is not supported anymore. Can you confirm, Allen?
It's possible, the graphics backend was updated a little. It works in a lot of places though. You can submit more information about your driver and the exact results you get from running 4coder at https://github.com/4coder-editor/4coder/issues