Fix masking.

Modified: trunk/reactos/subsys/win32k/ntuser/input.c

--- trunk/reactos/subsys/win32k/ntuser/input.c	2005-07-09 04:54:01 UTC (rev 16518)
+++ trunk/reactos/subsys/win32k/ntuser/input.c	2005-07-09 05:21:10 UTC (rev 16519)
@@ -1059,14 +1059,14 @@

     Msg.message = WM_XBUTTONUP;
     if(mi->mouseData & XBUTTON1)
     {

-      QueueKeyStateTable[VK_XBUTTON1] &= 0x80;

+      QueueKeyStateTable[VK_XBUTTON1] &= ~0x80;

       Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON1);
       CurInfo->ButtonsDown &= ~XBUTTON1;
       MsqInsertSystemMessage(&Msg);
     }
     if(mi->mouseData & XBUTTON2)
     {

-      QueueKeyStateTable[VK_XBUTTON2] &= 0x80;

+      QueueKeyStateTable[VK_XBUTTON2] &= ~0x80;

       Msg.wParam = MAKEWPARAM(CurInfo->ButtonsDown, XBUTTON2);
       CurInfo->ButtonsDown &= ~XBUTTON2;
       MsqInsertSystemMessage(&Msg);