diff --git a/src/sys/graphics/objgfx30.cpp b/src/sys/graphics/objgfx30.cpp
index 503176b..4a8e428 100755
--- a/src/sys/graphics/objgfx30.cpp
+++ b/src/sys/graphics/objgfx30.cpp
@@ -61,7 +61,7 @@
   yRes=_yRes;
   LineOfs[0]=0;
   for (yy=1; yy<=MaxY; yy++)
-    LineOfs[yy]=LineOfs[yy-1]+xRes*((BPP+7) >> 3);
+    LineOfs[yy]=LineOfs[yy-1]+xRes;
   DataState = og_Owner;
   // For 8bpp modes the next part doesn't matter 
   RedFieldPosition=_pixformat->RedFieldPosition;