Multiple selects in single view

I have three multiple selects in a single view:

<label for="technicians">Technicians:</label><br />
<select id="technicians" name="technicians[]" multiple="multiple"
size="5" style="width:250px;">
    <%=
options_from_collection_for_select(@all_technicians, :id, :name,
@selected_technicians) %>
</select>

<label for="computers">Computer Models:</label><br />
<select id="computers" name="computers[]" multiple="multiple" size="3"
style="width:150px;">
    <%=
options_from_collection_for_select(@all_computers, :id, :model,
@selected_computers) %>
</select>

<label for="licensed_programs">Licensed Software:</label><br />
<select id="licensed_programs" name="licensed_programs[]"
multiple="multiple" size="8" style="width:200px">
    <%=
options_from_collection_for_select(@all_licensed_programs, :id, :name,
@selected_licensed_programs) %>
</select>

The select lists populate with no trouble.

The problem I'm having is that only the first one works. After
creating an entry via the view the only join table that is populated
is sites_technicians. The other two are completely blank. Any hints,
advice, beratement etc. would be greatly appreciated.

Here is the page source it generates. I don't see anything
significantly different between the three multi-selects.

<p>
  <label for="technicians">Technicians:</label><br />
  <select id="technicians" name="technicians[]" multiple="multiple"
size="5" style="width:250px;">
    <option value="4">Albert Martinez</option>
<option value="6">Chris Sanchez</option>
<option value="3">Luis Arvizu</option>
<option value="5">Orlando Garcia</option>
<option value="2">Richard Martinez</option>

<option value="1">Thao Dang</option>
  </select>
</p>

<p>
  <label for="computers">Computer Models:</label><br />
  <select id="computers" name="computers[]" multiple="multiple"
size="3" style="width:150px;">
    <option value="1">Dell GX240</option>
  </select>

</p>

<p>
  <label for="licensed_programs">Licensed Software:</label><br />
  <select id="licensed_programs" name="licensed_programs[]"
multiple="multiple" size="8" style="width:200px">
    <option value="1">VIZ</option>
  </select>
</p>