This action pops two values, subtract the first one from the second and put the result back on the stack.
Recently, Linden Lab changed the way they create names for new avatars for Second Life. This has caused issues with SLiteChat but a simple work around can resolve this problem for you.
We updated the MO Glossary module with advanced support for anchors.
A known issue with SLiteChat is that avatars are "Ruthed" when displayed in Viewer 2.