6551075: screenshot image taken through clipboard on W2K terminal server is shifted

Reviewed-by: dav, uta
diff --git a/jdk/src/windows/native/sun/windows/awt_DataTransferer.cpp b/jdk/src/windows/native/sun/windows/awt_DataTransferer.cpp
index 5028b2a..b7225d1 100644
--- a/jdk/src/windows/native/sun/windows/awt_DataTransferer.cpp
+++ b/jdk/src/windows/native/sun/windows/awt_DataTransferer.cpp
@@ -398,7 +398,7 @@
                 case  4:
                 case  8:
                     nColorEntries = (pSrcBmih->biClrUsed != 0) ?
-                        pSrcBmih->biClrUsed : 1 << (pSrcBmih->biBitCount - 1);
+                        pSrcBmih->biClrUsed : (1 << pSrcBmih->biBitCount);
                     break;
                 case 16:
                 case 24: