diff --git a/src/vid_et4000w32.c b/src/vid_et4000w32.c
index 201701b..1775977 100644
--- a/src/vid_et4000w32.c
+++ b/src/vid_et4000w32.c
@@ -1085,7 +1085,6 @@ static void et4000w32p_io_set(et4000w32p_t *et4000)
 uint8_t et4000w32p_pci_read(int func, int addr, void *p)
 {
         et4000w32p_t *et4000 = (et4000w32p_t *)p;
-        svga_t *svga = &et4000->svga;
 
 //        pclog("ET4000 PCI read %08X\n", addr);
 
@@ -1110,8 +1109,8 @@ uint8_t et4000w32p_pci_read(int func, int addr, void *p)
                 
                 case 0x10: return 0x00; /*Linear frame buffer address*/
                 case 0x11: return 0x00;
-                case 0x12: return svga->crtc[0x5a] & 0x80;
-                case 0x13: return svga->crtc[0x59];
+                case 0x12: return 0x00;
+                case 0x13: return et4000->pci_regs[0x13];
 
                 case 0x30: return et4000->pci_regs[0x30] & 0x01; /*BIOS ROM address*/
                 case 0x31: return 0x00;
@@ -1137,7 +1136,8 @@ void et4000w32p_pci_write(int func, int addr, uint8_t val, void *p)
                 break;
 
                 case 0x13: 
-                et4000->linearbase = val << 24; 
+                et4000->linearbase = val << 24;
+                et4000->pci_regs[0x13] = val;
                 et4000w32p_recalcmapping(et4000); 
                 break;