Problem:

PuTTy is Freeware terminal emulation software for SSH and Telnet.

Using it on Linux, with sde, lines are drawn with lqkxmj characters

Resolution:

Micro Focus do not recommend settings for third-party terminal emulators.   However, we (Support) will take a look at specific customer issues on an informal basis to see if we can help.

PuTTy announces itself as an xterm emulator although it seems limited in it's configurables and doesn't draw as well as other emulators using this terminal type in the COBOL environment.  The FAQ on PuTTy's web site recommends trying vt220 to resolve some issues.

export TERM=vt220

export TERMINFO$COBDIR/terminfo

This works well although I haven't found how to return ansi colors.   If you're happy with monochrome, I would recommend you try this setting; if not, use PowerTerm which is part of the NetExpress UNIX add-on.  Use this in ansi emulation for best results.