diff --git a/uisimulator/sdl/UI-gigabeats.bmp b/uisimulator/sdl/UI-gigabeats.bmp
old mode 100755
new mode 100644
diff --git a/uisimulator/sdl/UI-mrobe500.bmp b/uisimulator/sdl/UI-mrobe500.bmp
old mode 100755
new mode 100644
diff --git a/uisimulator/sdl/UI-ondavx747.bmp b/uisimulator/sdl/UI-ondavx747.bmp
old mode 100755
new mode 100644
diff --git a/uisimulator/sdl/UI-ondavx747p.bmp b/uisimulator/sdl/UI-ondavx747p.bmp
old mode 100755
new mode 100644