diff --git a/userguide/en/bootloader.html b/userguide/en/bootloader.html
index c941af38..98bff9d7 100644
--- a/userguide/en/bootloader.html
+++ b/userguide/en/bootloader.html
@@ -54,11 +54,13 @@ It's also handy after you installed a software component that acts up and preven
 - Don't call the BIOS<br />
 - Disable APM<br />
 - Disable ACPI<br />
-- Disable IO-APIC<br />
-- Enable serial debug output</i>
+- Disable IO-APIC <span style="color:gray">&#160;&#160;&#160;&#160;[only available when IO-APIC is detected]</span><br />
+- Disable LOCAL APIC <span style="color:gray">&#160;&#160;&#160;&#160;[only available when LOCAL APIC is detected]</span><br />
+- Disable SMP <span style="color:gray">&#160;&#160;&#160;&#160;[only available when more than one CPU core is detected]</span><br />
+- Enable serial debug output<br />
 - Enable on screen debug output</i>
 </p></td></tr>
-<tr><td class="onelinetop"><b>Select fail safe video mode</b></td><td>&#160;</td><td>If you had to activate the option <i>Use fail-safe video mode</i>, you can set resolution and color depth.</td></tr>
+<tr><td class="onelinetop"><b>Select fail-safe video mode</b></td><td>&#160;</td><td>If you had to activate the option <i>Use fail-safe video mode</i>, you can set resolution and color depth.</td></tr>
 </table>
 <p><br /></p>
 <p>After activating one or more options, you return to the main menu and continue booting, which presents you with this boot screen:</p>