Error Log

Hi,

I'm getting the errors below in my error_log file. Besides that, the guestbook works perfectly. Any ideas why these errors occur?

Thanks!

[13-Aug-2004 17:25:18] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[13-Aug-2004 17:25:18] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[16-Sep-2004 12:56:09] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[16-Sep-2004 12:56:09] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[22-Sep-2004 23:38:38] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[22-Sep-2004 23:38:38] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[26-Sep-2004 00:44:45] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[26-Sep-2004 00:44:45] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[01-Oct-2004 12:13:41] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[01-Oct-2004 12:13:41] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[07-Oct-2004 05:16:22] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[07-Oct-2004 05:16:22] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[14-Oct-2004 07:03:46] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[14-Oct-2004 07:03:46] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[28-Oct-2004 12:51:06] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[28-Oct-2004 12:51:06] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[01-Nov-2004 22:16:30] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[01-Nov-2004 22:16:30] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[11-Nov-2004 00:24:26] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[11-Nov-2004 00:24:26] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[20-Nov-2004 05:07:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[20-Nov-2004 05:07:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[02-Dec-2004 06:16:53] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[02-Dec-2004 06:16:53] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[04-Dec-2004 04:03:33] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[04-Dec-2004 04:03:33] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[10-Dec-2004 01:30:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[10-Dec-2004 01:30:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[24-Dec-2004 20:53:17] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[24-Dec-2004 20:53:18] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[13-Jan-2005 16:53:29] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[13-Jan-2005 16:53:29] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[16-Jan-2005 07:32:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[16-Jan-2005 07:32:57] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[16-Jan-2005 13:03:52] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[16-Jan-2005 13:03:52] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[24-Jan-2005 21:53:19] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[24-Jan-2005 21:53:19] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17
[28-Jan-2005 09:02:22] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 9
[28-Jan-2005 09:02:22] PHP Warning:  getimagesize(): Read error! in /home/enterm2/public_html/guestbook/picture.php on line 17