diff --git a/polymer/eduke32/build/src/polymer.c b/polymer/eduke32/build/src/polymer.c
index e907cc037..a3e9fd2c7 100644
--- a/polymer/eduke32/build/src/polymer.c
+++ b/polymer/eduke32/build/src/polymer.c
@@ -1470,6 +1470,12 @@ int16_t             polymer_addlight(_prlight* light)
     if (lighti == PR_MAXLIGHTS)
         return (-1);
 
+    // Spot lights disabled on ATI cards because they cause crashes with
+    // Catalyst 12.8 drivers.
+    // See: http://forums.duke4.net/topic/5723-hrp-polymer-crash/
+    if (pr_ati_fboworkaround && light->radius)
+        return (-1);
+
     Bmemcpy(&prlights[lighti], light, sizeof(_prlight));
 
     if (light->radius) {