FYI, a minor cosmetic thing.
Chizra just noted that if you've actually migrated from using zMUD to Batclient, you may have changed your prompt setting to include an extra <lf>. Batclient already adds a space in between prompt and commands, if run in the default (prompt not combined with command line) mode.
Should you have a <lf> in the prompt, it may cause a small flicker every now and then.