Expecting Picture File

I just found out today from a friend trying to add a guestbook entry that it's not working.

Turns out that if the user does not specify a picture file, they will get an error 'Warning: getimagesize: Unable to open '' for reading.'

If the user does specify a picture file then all is ok.

For the life of me I can not figure out why Guestbook is failing when NO picture file is specified.

Please help

Thomas

I wanted to add that the following line in lib/add.class.php is what I feel is failing incorrectly:

if (is_array($this->userfile) && $this->userfile["userfile"]["tmp_name"] != "none") {

I do not think that it should fall into this if there is no picture file specified (right ?).

Thomas

Doing some searching I found that the solution was:

fix for addentry.php:

$gb_post->userfile = (isset($HTTP_POST_FILES["userfile"]["tmp_name"]) && $HTTP_POST_FILES["userfile"]["tmp_name"] != "") ? $HTTP_POST_FILES : '';

Regards,

Thomas