diff --git a/assets/themes/mark-reid/css/screen.css b/assets/themes/mark-reid/css/screen.css
index 494c382..d5f6571 100644
--- a/assets/themes/mark-reid/css/screen.css
+++ b/assets/themes/mark-reid/css/screen.css
@@ -28,7 +28,7 @@ body {
 }
 
 /* Hack via Joel Spolsky to make image rescaling nicer in IE */
-img { -ms-interpolation-mode:bicubic; }
+img { -ms-interpolation-mode:bicubic; width: 100%; }
 
 /* IE6 ignores this and uses default size of 16pt */
 html>body { font-size:16px; }