Some images not showing, if over 100%

[recoding]

I have the thumb.php making the thumbnails of my images folder, which normally works fine, but i checked it today and everything that was over 100% of the 100x100 size didnt show,
eg

showed fine, but
this didnt:

i get this error:

Code:

Fatal error: Call to undefined function: imagecreatetruecolor() in /home/**HIDDEN**/thumb.php on line 233

Or this

Code:

Fatal error: Call to undefined function: imagecreate() in /home/**HIDDEN**/thumb.php on line 229

Anything i can do to fix this?

[zubrag]

Looks like php's GD module is not loaded. Save following as php file, open in browser, and check if there is GD loaded.

<?php  echo phpinfo();  ?>

[recoding]

AH, i knew that, seems when i updated to Version 11 of cpanel, it reset itself, thanks for the update