Update the doxygen configuration file.
Minor updates/fixes to the source documentation.
diff --git a/doxygen/array_cache.doxy b/doxygen/array_cache.doxy
index 5790ec8..23296e1 100644
--- a/doxygen/array_cache.doxy
+++ b/doxygen/array_cache.doxy
@@ -40,7 +40,7 @@
 #---------------------------------------------------------------------------
 # Configuration::addtions related to external references   
 #---------------------------------------------------------------------------
-TAGFILES               = core.tag=../core \
+TAGFILES               = main.tag=../core \
 			 tnl.tag=../tnl \
 			 swrast_setup.tag=../swrast_setup \
 			 swrast.tag=../swrast \