Index: /trunk/src/VBox/Devices/Graphics/BIOS/vbe.c
===================================================================
--- /trunk/src/VBox/Devices/Graphics/BIOS/vbe.c	(revision 33000)
+++ /trunk/src/VBox/Devices/Graphics/BIOS/vbe.c	(revision 33001)
@@ -44,5 +44,5 @@
 //#define VBE2_NO_VESA_CHECK
 
-// use bytewise i/o by default (Longhorn issue)
+// use bytewise i/o by default (Longhorn beta issue, not in released Vista)
 #define VBE_BYTEWISE_IO
 
Index: /trunk/src/VBox/Devices/Graphics/DevVGA.cpp
===================================================================
--- /trunk/src/VBox/Devices/Graphics/DevVGA.cpp	(revision 33000)
+++ /trunk/src/VBox/Devices/Graphics/DevVGA.cpp	(revision 33001)
@@ -71,5 +71,5 @@
 #define VGASTATE2DEVINS(pVgaState)    ((pVgaState)->CTX_SUFF(pDevIns))
 
-/** Use VBE bytewise I/O */
+/** Use VBE bytewise I/O. Only needed for Windows Longhorn/Vista betas. */
 #define VBE_BYTEWISE_IO
 
