Another thread (
http://forum.spaceo.net/index.php/topic,4464.0.html) gave me the idea to put an image as a fleet name, as it seemed to be a legal move.
One epic fail later, I can't even access the renamed fleet from the view/edit screen (An entire table row was missing - using epiphany browser here), and the bad elements hosed up almost every other screen with fleet names on them.
Panic and mail emi? No!
Solution: Go to view/edit screen.
View the page source. Find the fleet name your tried to set (in my case, ctrl+f "photobucket" worked). Each row is a fleet and it's options, so stay inside the table row (<tr>) element.
---------------
<tr align="center" class="emi8" onMouseOver="this.className='emi6'" style="cursor:pointer" onMouseOut="this.className='emi8'" onClick="javascript:setFleet('
1061059');">
<td>/<img src='
http://i203.photobucket.com/albums/aa22</td>
<td><b>0</b></td>
<td>2.545</td>
<td nowrap><a href="?_s=790870579&_o=0&_a=32&_c=
1061059" class="guru">View / Edit</a></td>
<td><input type="radio" name="_c" id="1061059" value="
1061059"></td>
</tr>
-----------
It should be pretty obvious now that '1061059' is a special identifier for this fleet. Click the view/edit link for another fleet, and snatch that URL. I got this:
http://www.spaceo.net/ind.php?_s=790870579&_o=0&_a=32&_c=10606891061059 looks a lot like 1060689. Switch out the identifier numbers, and navigate to that new url, and tada!, you can rename your broken fleet again.
[tags for giggles: broken fleet name image fleet name picture fleet name]