Index: /trunk/src/VBox/Devices/Graphics/DevVGA.cpp
===================================================================
--- /trunk/src/VBox/Devices/Graphics/DevVGA.cpp	(revision 33874)
+++ /trunk/src/VBox/Devices/Graphics/DevVGA.cpp	(revision 33875)
@@ -579,5 +579,5 @@
         uint8_t     val = s->st01 & ~(ST01_V_RETRACE | ST01_DISP_ENABLE);
         unsigned    cur_frame_ns, cur_line_ns;
-        int64_t     time_ns;
+        uint64_t    time_ns;
 
         time_ns = PDMDevHlpTMTimeVirtGetNano(VGASTATE2DEVINS(s));