diff -up asymptote-2.00/settings.cc.orig asymptote-2.00/settings.cc
--- asymptote-2.00/settings.cc.orig	2010-06-24 02:57:58.000000000 -0400
+++ asymptote-2.00/settings.cc	2010-06-28 10:07:44.747973803 -0400
@@ -89,11 +89,11 @@ bool msdos=false;
 string HOME="HOME";
 string docdir=ASYMPTOTE_DOCDIR;
 const char pathSeparator=':';
-string defaultPSViewer="gv";
+string defaultPSViewer="evince";
 #ifdef __APPLE__
 string defaultPDFViewer="open";
 #else  
-string defaultPDFViewer="acroread";
+string defaultPDFViewer="evince";
 #endif  
 string defaultGhostscript="gs";
 string defaultDisplay="display";