I use Vim with cygwin. At enable bind_scroll, Vim don't refresh window after inputing `j`, `k` or other moving key. I must press `ctrl+L` to refresh screen to recover. 
I use Vim with cygwin.
At enable bind_scroll, Vim don't refresh window after inputing
j,kor other moving key. I must pressctrl+Lto refresh screen to recover.