K 10 svn:author V 5 joerg K 8 svn:date V 27 1995-12-15T22:25:50.000000Z K 7 svn:log V 161 Major upgrade from Lars. The geometry bug has been fixed, and the swap display improved. Submitted by: Lars Köller (Lars_Koeller@odie.physik2.uni-rostock.de) END