Well I can tell you where the problem is coming from... After you perform a search, if you hold your mouse over the thread, you'll see it's linking to something like:
http://yoursite.com/forum/showthread.php?s=&threadid=x&highlight=
"what+you+searched+for
"
The " marks in the url seem to be what's causing the problem. When you click on the thread it replaces the " marks with %2B in your browsers url. If you remove the %2B from the url then it seems to work as it should. Not sure how to fix it yet, but hopefully that gives traekwon a little more insight as to what the problem is.
I also just noticed another strange problem that seems to be coming from the %2B being in the url... After I performed the search and went to one of the threads, a smilie image there had
border="0" alt=""> after the image. When I viewed the source there it has this for the html code...
<td bgcolor="#160056" colspan="2" align="left" valign="top"><p><font class="nf">he saw 'the ring'<br /><font color="red"></font>
<font color="red"></font><br /><font color="red"></font>
<font color="red"></font><img src="/forum/images/smilies/frown.gif"<font color="red"></font> border="0"<font color="red"></font> alt="<font color="red"></font>"><font color="red"></font></font></p></td>
Obviously it's trying to highlight quite a few things there that it shouldn't be.