http://www.contextures.com/xlcomments02.html#Picture
See if their is some info you can use in this article

"JC" wrote:

Hi,

I am running Office 2003 Pro under XP Pro with 1GB RAM.

I have a rather large spreadsheet with 1 row per day and columns out to AO. I
have comments in about 20% of the cells. A funny has just showed up with the
comments - some, but not all, of the comments have lost their background colour
and border so that the cells beneath are also seen.

If I edit the comment the borders show as a series of short lines at 45 degrees,
however, if I select to adjust the border then the borders show up as a solid
line

I can still read the comments with some difficulty but I would like to fix the
problem if possible.

Any suggestions?
--

Cheers . . . JC