File:Xterm-ibm-rogue.png

Like Image:Xterm-ibm-oracle.png, this screenshot shows IBMgraphics in an xterm, but there is a serious graphical glitch here. Unlike a real IBM PC, luit does not map ASCII control characters to graphical characters. Thus there are some missing characters, like the smiley face for the Rogue level. NetHack uses these missing characters only at the Rogue level.

The problem manifests in the above screenshot by having one piece of wall appear one square left of its actual position, because of the missing smiley face. However, as you move around and fight monsters, the problem becomes much worse as many map elements shift out of place. In corridors, you can easily become lost. You can type ^R to redraw to fix most of the map, producing something like the above screenshot.

The most obvious workaround is to disable IBMgraphics whenever you visit the rogue level.