diff -u orig/nv/nv_driver.c nv/nv_driver.c
--- orig/nv/nv_driver.c	2004-05-11 13:48:34.000000000 +0100
+++ nv/nv_driver.c	2004-05-12 14:11:36.009456976 +0100
@@ -167,6 +167,7 @@
   { 0x10DE032C, "0x032C" },
   { 0x10DE032D, "0x032D" },
   { 0x10DE032F, "0x032F" },
+  { 0x10DE02A0,"Geforce3 XBox"},
   {-1, NULL}
 };
 
@@ -1272,6 +1273,7 @@
         case 0x0200:
         case 0x0250:
         case 0x0280:
+        case 0x02A0:
 	case 0x0300:
 	case 0x0310:
 	case 0x0320:
@@ -1345,7 +1347,8 @@
     clockRanges->maxClock = pNv->MaxClock;
     clockRanges->clockIndex = -1;		/* programmable */
     if(((pNv->Chipset & 0x0ff0) <= 0x0100) ||
-       ((pNv->Chipset & 0x0ff0) == 0x0150))
+       ((pNv->Chipset & 0x0ff0) == 0x0150) ||
+       ((pNv->Chipset & 0x0ff0) == 0x02A0))
     {
        clockRanges->interlaceAllowed = TRUE;
     } else  /* Chips after NV15 (including NV11) do not support interlaced */
@@ -1584,7 +1587,8 @@
     /* Program the registers */
     vgaHWProtect(pScrn, TRUE);
 
-    (*pNv->Restore)(pScrn, vgaReg, nvReg, FALSE);
+    if ((pNv->Chipset & 0x0ff0) != 0x02A0)
+        (*pNv->Restore)(pScrn, vgaReg, nvReg, FALSE);
 
 #if X_BYTE_ORDER == X_BIG_ENDIAN
     /* turn on LFB swapping */
@@ -1628,7 +1632,9 @@
 
     /* Only restore text mode fonts/text for the primary card */
     vgaHWProtect(pScrn, TRUE);
-    (*pNv->Restore)(pScrn, vgaReg, nvReg, pNv->Primary);
+    if ((pNv->Chipset & 0x0ff0) != 0x02A0) {
+        (*pNv->Restore)(pScrn, vgaReg, nvReg, pNv->Primary);
+    }
     vgaHWProtect(pScrn, FALSE);
 }
 
@@ -1700,6 +1706,11 @@
 	if (!NVMapMem(pScrn))
 	    return FALSE;
     }
+    if ((pNv->Chipset & 0x0ff0) == 0x02A0)
+      {
+        pNv->riva.CURSOR = (U032 *)(pNv->FbStart + pNv->FbUsableSize);
+        DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "- CURSOR %x\n", pNv->riva.CURSOR));
+      }
     DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "- Mem Mapped\n"));
     
     /* Map the VGA memory when the primary video */
Only in orig/nv/: nv_driver.c.orig
diff -u orig/nv/nv_setup.c nv/nv_setup.c
--- orig/nv/nv_setup.c	2004-05-11 13:48:34.000000000 +0100
+++ nv/nv_setup.c	2004-05-11 14:57:30.000000000 +0100
@@ -449,7 +449,9 @@
 
 #if !defined(__powerpc__)
     /* Read and print the Monitor DDC info */
-    pScrn->monitor->DDC = NVdoDDC(pScrn);
+    if ((pNv->Chipset & 0x0ff0) != 0x02A0) {
+        pScrn->monitor->DDC = NVdoDDC(pScrn);
+    }
 #endif
     if(pNv->FlatPanel == -1) {
         pNv->FlatPanel = 0;
@@ -544,6 +546,7 @@
     NVPtr pNv = NVPTR(pScrn);
     CARD32 regBase = pNv->IOAddress;
     int mmioFlags;
+    int flags;
 
     DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "NV20Setup\n"));
 
@@ -555,5 +558,12 @@
                                      regBase+0x00600000, 0x00003000);
 
     NVCommonSetup(pScrn);
+    if ((pNv->Chipset & 0x0ff0) == 0x02A0)
+      {
+        pNv->riva.PMC[0x200/4] |= 0x10001100;
+        flags = pNv->riva.PMC[0x200/4];
+        DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "EnableFlags: 0x%0x\n",flags));
+      }
+
 }
 
diff -u orig/nv/nv_video.c nv/nv_video.c
--- orig/nv/nv_video.c	2004-05-11 13:48:34.000000000 +0100
+++ nv/nv_video.c	2004-05-11 13:44:27.000000000 +0100
@@ -421,7 +421,14 @@
         xf86XVFillKeyHelper(pScrnInfo->pScreen, pPriv->colorKey, clipBoxes);
     }
 
-    pRiva->PMC[(0x8900/4) + buffer] = offset;
+    if ((pNv->Chipset & 0x0ff0) == 0x02A0)
+    {
+        pRiva->PMC[(0x8900/4) + buffer] = pNv->riva.RamAmountKBytes * 1024 - pNv->FbMapSize + offset;
+    }
+    else
+    {
+        pRiva->PMC[(0x8900/4) + buffer] = offset;
+    }
     pRiva->PMC[(0x8928/4) + buffer] = (height << 16) | width;
     pRiva->PMC[(0x8930/4) + buffer] = ((y1 << 4) & 0xffff0000) | (x1 >> 12);
     pRiva->PMC[(0x8938/4) + buffer] = (src_w << 20) / drw_w;