Index: /trunk/src/VBox/HostServices/SharedOpenGL/crserverlib/server_presenter.cpp
===================================================================
--- /trunk/src/VBox/HostServices/SharedOpenGL/crserverlib/server_presenter.cpp	(revision 50377)
+++ /trunk/src/VBox/HostServices/SharedOpenGL/crserverlib/server_presenter.cpp	(revision 50378)
@@ -279,6 +279,6 @@
 
     CrBmpScale32(pu8Dst, pDst->pitch,
-                        CR_FLOAT_RCAST(int32_t, strX * pCopyRect->xRight - pCopyRect->xLeft),
-                        CR_FLOAT_RCAST(int32_t, strY * pCopyRect->yBottom - pCopyRect->yTop),
+                        CR_FLOAT_RCAST(int32_t, strX * (pCopyRect->xRight - pCopyRect->xLeft)),
+                        CR_FLOAT_RCAST(int32_t, strY * (pCopyRect->yBottom - pCopyRect->yTop)),
                         pu8Src,
                         fSrcInvert ? -pSrc->pitch : pSrc->pitch,