1. create a file of 1000000 (1MB) characters in one line – do it by copy/paste (for example, in geometric progression fashion which requires only 32 copy/pastes :-)
2. turn off wrapping (Ctrl-1), save it
3. close EmEditor (!)
3. launch EmEditor with this file (doubleclick in Explorer or run via command line with the file name as parameter)
now the bug:
4. Cursor insertion point is half a window away from the line end