diff --git a/docs/pcjs/demos/components.xsl b/docs/pcjs/demos/components.xsl
index adf645804..bd142a09c 100644
--- a/docs/pcjs/demos/components.xsl
+++ b/docs/pcjs/demos/components.xsl
@@ -376,7 +376,7 @@
 					<form class="{$APPCLASS}-binding" data-value="{$type},{$binding}">
 						<fieldset class="{$APPCLASS}-fieldset">
 							<input type="file"/>
-							<input type="submit" value="Load" disabled="true"/>
+							<input type="submit" value="Mount" disabled="true"/>
 						</fieldset>
 					</form>
 				</xsl:when>
diff --git a/modules/c1pjs/lib/cpu.js b/modules/c1pjs/lib/cpu.js
index d080bc116..246bfab1d 100644
--- a/modules/c1pjs/lib/cpu.js
+++ b/modules/c1pjs/lib/cpu.js
@@ -1114,7 +1114,7 @@ C1PCPU.prototype.run = function()
         this.halt();
         this.update();
         this.setBusy(false);
-        this.setError(e.message);
+        this.setError(e.stack || e.message);
         return;
     }
     setTimeout(function(cpu) { return function() {cpu.run();}; }(this), this.calcRemainingTime());
diff --git a/modules/c1pjs/lib/debugger.js b/modules/c1pjs/lib/debugger.js
index 442c9c97a..cf35a8765 100644
--- a/modules/c1pjs/lib/debugger.js
+++ b/modules/c1pjs/lib/debugger.js
@@ -794,7 +794,7 @@ if (DEBUGGER) {
         }
         catch(e) {
             fCompleted = undefined;
-            this.cpu.setError(e.message || e);
+            this.cpu.setError(e.stack || e.message);
         }
         if (fCompleted !== undefined) this.cIns++;
         /*