updated for version 7.0c10
diff --git a/runtime/plugin/vimballPlugin.vim b/runtime/plugin/vimballPlugin.vim
index cb71404..3515889 100644
--- a/runtime/plugin/vimballPlugin.vim
+++ b/runtime/plugin/vimballPlugin.vim
@@ -21,7 +21,7 @@
com! -ra -na=+ -bang MkVimball call vimball#MkVimball(<line1>,<line2>,<bang>0,<f-args>)
com! -na=0 UseVimball call vimball#Vimball(1)
com! -na=0 VimballList call vimball#Vimball(0)
-au BufReadPost *.vba echohl WarningMsg | echo "Source this file to extract it! (:so %)" | echohl None
+au BufEnter *.vba echohl WarningMsg | echo "Source this file to extract it! (:so %)" | echohl None
let &cpo= s:keepcpo
unlet s:keepcpo