I've got a Content Editor Web Part where I've linked to several documents in a
library on the same site. It seems, though, when a PDF is edited by going
through Windows Explorer that somehow the CEWP code is changing. This causes
the link to become invalid as it is looking for a different file.

This code was inserted by clicking on the Source Code button. The original file
referenced is called t.9_code_yellow.pdf. Once the edit is complete, two things
occur: the link in the CEWP is changed (the last file name I saw was AAB02828)
and I also see a file in the site collection recycle bin that corresponds to the
time of the edit with that new AAB02828 file name. I've attached a snippet of
the code that I'm using:

<tr>
<td class="ItemNum" style="background-color: #ffa500;"><font color=#ffffff><a
href=http://server/sites/site/Policy_Documents/t.9_code_yellow.pdf
class="one">9</a></font></td>
<td class="ItemDesc"><a
href="http://server/sites/site/Policy_Documents/t.9_code_yellow.pdf">Code
Yellow</a></td>
</tr>

Any idea what's causing this? I've been racking my brain trying to figure out
what sort of relationship would cause the code in the web part to change but
I've got nothing. I've tried repeating this process with a Word document but it
seems to behave properly. Any help would be appreciated!