--- src/UI/VirKeyboard.fl.orig	2008-05-12 10:32:23.000000000 +0200
+++ src/UI/VirKeyboard.fl	2008-05-12 11:50:13.000000000 +0200
@@ -136,7 +136,7 @@ if ((event==FL_PUSH)||(event==FL_DRAG)||
    };
 
    if ((event==FL_PUSH)&&(Fl::event_shift()!=0)) {
-       if (pressed[kpos]==0) presskey(kpos,0,1);
+       if (kpos <=0 || pressed[kpos]==0) presskey(kpos,0,1);
           else relasekey(kpos,1);
    };
    if ((event==FL_RELEASE)&&(Fl::event_shift()==0))
@@ -168,8 +168,10 @@ return(1);} {}
   }
   Function {presskey(int nk,int exclusive,int type)} {} {
     code {if (nk>=N_OCT*12) return;
-if ((nk<0)&&(exclusive==0)) {
-  relaseallkeys(type);
+if (nk<0) {
+  if (exclusive==0) {
+    relaseallkeys(type);
+  }
   return;
 };
 if (pressed[nk]!=0) return;//the key is already pressed