Index: config/config.opts
===================================================================
--- config/config.opts.orig
+++ config/config.opts
@@ -18,7 +18,11 @@
 
 include port 0x100-0x3af
 include port 0x3e0-0x4ff
+# ports 0x88. hurt on some machines. You may replace
 include port 0x820-0x8ff
+# with these lines
+# include port 0x820-0x87f
+# include port 0x890-0x8ff
 include port 0xc00-0xcf7
 
 include memory 0xc0000-0xfffff