diff -ur fluxbox.orig/src/fluxbox.cc fluxbox/src/fluxbox.cc
--- fluxbox.orig/src/fluxbox.cc	2004-07-16 03:47:46.000000000 +0200
+++ fluxbox/src/fluxbox.cc	2004-08-06 19:34:54.569424376 +0200
@@ -1146,9 +1146,9 @@
                 screen->getRootmenu().grabInputFocus();
             }
         } else if (screen->isDesktopWheeling() && be.button == 4) {
-            screen->nextWorkspace(1);
-        } else if (screen->isDesktopWheeling() && be.button == 5) {
             screen->prevWorkspace(1);
+        } else if (screen->isDesktopWheeling() && be.button == 5) {
+            screen->nextWorkspace(1);
         }
         
     } break;
diff -ur fluxbox.orig/src/Toolbar.cc fluxbox/src/Toolbar.cc
--- fluxbox.orig/src/Toolbar.cc	2004-07-15 18:11:58.000000000 +0200
+++ fluxbox/src/Toolbar.cc	2004-08-06 19:35:09.766114128 +0200
@@ -504,9 +504,9 @@
     if (re.button == 1)
         raise();
     else if (re.button == 4) //mousewheel scroll up
-        screen().nextWorkspace(1);
-    else if (re.button == 5)	//mousewheel scroll down
         screen().prevWorkspace(1);
+    else if (re.button == 5)	//mousewheel scroll down
+        screen().nextWorkspace(1);
 }
 
 void Toolbar::enterNotifyEvent(XCrossingEvent &not_used) {