diff --git a/hw/dmx/dmxgcops.c b/hw/dmx/dmxgcops.c
index 425aa7c96..bc8cd9edc 100644
--- a/hw/dmx/dmxgcops.c
+++ b/hw/dmx/dmxgcops.c
@@ -523,8 +523,10 @@ static DMXScreenInfo *dmxFindAlternatePixmap(DrawablePtr pDrawable, XID *draw)
             
     if (noPanoramiXExtension)               return NULL;
     if (pDrawable->type != DRAWABLE_PIXMAP) return NULL;
-    
-    if (!(pXinPix = (PanoramiXRes *)LookupIDByType(pDrawable->id, XRT_PIXMAP)))
+
+    if (Success != dixLookupResourceByType((pointer*) &pXinPix,
+					   pDrawable->id, XRT_PIXMAP,
+					   NullClient, DixUnknownAccess))
         return NULL;
 
     for (i = 1; i < PanoramiXNumScreens; i++) {
diff --git a/hw/dmx/glxProxy/glxcmds.c b/hw/dmx/glxProxy/glxcmds.c
index 050d1e3fe..4e2e62fa6 100644
--- a/hw/dmx/glxProxy/glxcmds.c
+++ b/hw/dmx/glxProxy/glxcmds.c
@@ -2897,6 +2897,7 @@ int __glXCreateWindow(__GLXclientState *cl, GLbyte *pc)
     VisualPtr pVisual;
     VisualID visId;
     int i, rc;
+    pointer val;
 
     /*
     ** Check if windowId is valid 
@@ -2962,7 +2963,9 @@ int __glXCreateWindow(__GLXclientState *cl, GLbyte *pc)
     /*
     ** Check if there is already a fbconfig associated with this window
     */
-    if ( LookupIDByType(glxwindowId, __glXWindowRes) ) {
+    if (Success == dixLookupResourceByType(&val,
+					   glxwindowId, __glXWindowRes,
+					   NullClient, DixUnknownAccess)) {
 	client->errorValue = glxwindowId;
 	return BadAlloc;
     }
@@ -2994,11 +2997,14 @@ int __glXDestroyWindow(__GLXclientState *cl, GLbyte *pc)
     ClientPtr client = cl->client;
     xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc;
     XID glxwindow = req->glxwindow;
+    pointer val;
 
     /*
     ** Check if it's a valid GLX window.
     */
-    if (!LookupIDByType(glxwindow, __glXWindowRes)) {
+    if (Success != dixLookupResourceByType(&val,
+					   glxwindow, __glXWindowRes,
+					   NullClient, DixUnknownAccess)) {
 	client->errorValue = glxwindow;
 	return __glXBadDrawable;
     }
diff --git a/hw/dmx/glxProxy/glxext.c b/hw/dmx/glxProxy/glxext.c
index 886b317c6..7f63b6b0b 100644
--- a/hw/dmx/glxProxy/glxext.c
+++ b/hw/dmx/glxProxy/glxext.c
@@ -186,8 +186,12 @@ void __glXFreeGLXWindow(__glXWindow *pGlxWindow)
 {
     if (!pGlxWindow->idExists && !pGlxWindow->refcnt) {
 	WindowPtr pWindow = (WindowPtr) pGlxWindow->pDraw;
+	WindowPtr ret;
 
-        if (LookupIDByType(pWindow->drawable.id, RT_WINDOW) == pWindow) {
+	dixLookupResourceByType((pointer) &ret,
+				pWindow->drawable.id, RT_WINDOW,
+				NullClient, DixUnknownAccess);
+        if (ret == pWindow) {
             (*pGlxWindow->pScreen->DestroyWindow)(pWindow);
         }