diff -Nur grustibus-0.43/src/mameio.c grustibus-0.43p2/src/mameio.c
--- grustibus-0.43/src/mameio.c	2001-05-28 02:09:06.000000000 +0200
+++ grustibus-0.43p2/src/mameio.c	2004-07-14 12:02:33.000000000 +0200
@@ -168,7 +168,7 @@
 
 
                                 if (p[0] == '\"')
-                                        *p = *p++;
+                                        *p++;
                                 value = p;
 
                                 i = 0;