I just upgraded from v20.00 build 14 (the initial release) to the latest v20.0 build 20. It seems like something changed in the way the application handles double-byte code pages. I checked this in code page 950, but also assume that 949, 936, and 932 would also have the same behavior (I would have to reboot to verify those). When I start typing, it inserts spaces between each character, e.g.: If I type "dir /s /b", it would show up as: Code: C:\Temp>d i r / s / b If I do a CHCP 437 and type the same command, then it would be fine: Code: C:\Temp>dir /s /b The command still works, so it's not actually adding spaces, it's only in the presentation. If I use tab completion, then it doesn't insert spaces on the completed portion, but adds many of spaces after it, so it would look something like this (where MyFile.txt was tab completed): Code: C:\Temp>d i r MyFile.txt S e c o n d F i l e . t x t I rolled back to v20.00.14 and it works fine. I also still had an old build of v19 installed and it also still works, so it seems like it is something with the latest build and not a system configuration issue.