diff --git a/TileEngine/overhead map.cpp b/TileEngine/overhead map.cpp
index c0bc55654..a5f797a21 100644
--- a/TileEngine/overhead map.cpp	
+++ b/TileEngine/overhead map.cpp	
@@ -1063,24 +1063,28 @@ void RenderOverheadMap( INT16 sStartPointX_M, INT16 sStartPointY_M, INT16 sStart
 							{
 								pTile = &( gSmTileDB[ pNode->usIndex ] );
 
-								sX = sTempPosX_S;
-								sY = sTempPosY_S;
-
-								if( gTileDatabase[ pNode->usIndex ].uiFlags & IGNORE_WORLD_HEIGHT )
+								// Flugente: uninformed hack
+								if ( pTile && pTile->vo )
 								{
-									sY -= sModifiedHeight;
+									sX = sTempPosX_S;
+									sY = sTempPosY_S;
+
+									if( gTileDatabase[ pNode->usIndex ].uiFlags & IGNORE_WORLD_HEIGHT )
+									{
+										sY -= sModifiedHeight;
+									}
+									else
+									{
+										sY -= sHeight;
+									}
+
+									sY += ( gsRenderHeight / 5 );
+
+									pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
+
+									// RENDER!
+									Blt8BPPDataTo16BPPBufferTransparent((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
 								}
-								else
-								{
-									sY -= sHeight;
-								}
-
-								sY += ( gsRenderHeight / 5 );
-
-								pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
-
-								// RENDER!
-								Blt8BPPDataTo16BPPBufferTransparent((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
 							}
 						}
 						pNode = pNode->pNext;
@@ -1092,21 +1096,26 @@ void RenderOverheadMap( INT16 sStartPointX_M, INT16 sStartPointY_M, INT16 sStart
 						if(usTileIndex >= 0 && usTileIndex < GRIDSIZE)//dnl ch82 081213
 						{
 							pTile = &( gSmTileDB[ pNode->usIndex ] );
-							sX = sTempPosX_S;
-							sY = sTempPosY_S - sHeight;
-							//dnl ch82 081213
-							sY = sTempPosY_S;
-							if(gTileDatabase[pNode->usIndex].uiFlags & IGNORE_WORLD_HEIGHT)
-								sY -= sModifiedHeight;
-							else
-								sY -= sHeight;
 
-							sY += ( gsRenderHeight / 5 );
+							// Flugente: uninformed hack
+							if ( pTile && pTile->vo )
+							{
+								sX = sTempPosX_S;
+								sY = sTempPosY_S - sHeight;
+								//dnl ch82 081213
+								sY = sTempPosY_S;
+								if(gTileDatabase[pNode->usIndex].uiFlags & IGNORE_WORLD_HEIGHT)
+									sY -= sModifiedHeight;
+								else
+									sY -= sHeight;
 
-							pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
+								sY += ( gsRenderHeight / 5 );
 
-							// RENDER!
-							Blt8BPPDataTo16BPPBufferShadow((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
+								pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
+
+								// RENDER!
+								Blt8BPPDataTo16BPPBufferShadow((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
+							}
 						}
 						pNode = pNode->pNext;
 					}
@@ -1121,24 +1130,28 @@ void RenderOverheadMap( INT16 sStartPointX_M, INT16 sStartPointY_M, INT16 sStart
 							{
 								pTile = &( gSmTileDB[ pNode->usIndex ] );
 
-								sX = sTempPosX_S;
-								sY = sTempPosY_S - (gTileDatabase[ pNode->usIndex ].sOffsetHeight/5);
-
-								if( gTileDatabase[ pNode->usIndex ].uiFlags & IGNORE_WORLD_HEIGHT )
+								// Flugente: uninformed hack
+								if ( pTile && pTile->vo )
 								{
-									sY -= sModifiedHeight;
+									sX = sTempPosX_S;
+									sY = sTempPosY_S - (gTileDatabase[ pNode->usIndex ].sOffsetHeight/5);
+
+									if( gTileDatabase[ pNode->usIndex ].uiFlags & IGNORE_WORLD_HEIGHT )
+									{
+										sY -= sModifiedHeight;
+									}
+									else
+									{
+										sY -= sHeight;
+									}
+
+									sY += ( gsRenderHeight / 5 );
+
+									pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
+
+									// RENDER!
+									Blt8BPPDataTo16BPPBufferTransparent((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
 								}
-								else
-								{
-									sY -= sHeight;
-								}
-
-								sY += ( gsRenderHeight / 5 );
-
-								pTile->vo->pShadeCurrent= gSmTileSurf[ pTile->fType ].vo->pShades[pNode->ubShadeLevel];
-
-								// RENDER!
-								Blt8BPPDataTo16BPPBufferTransparent((UINT16*)pDestBuf, uiDestPitchBYTES, pTile->vo, sX, sY, pTile->usSubIndex );
 							}
 						}
 						pNode = pNode->pNext;