I see, it's just the TimThumb image resizer being blocked. You should contact your hosting provider support as the error is "Internal Server Error". They will be able to help you quickly.

See error when visiting image:
http://www.biostufereal.com/wp-content/themes/Momento/timthumb.php?src=http://www.biostufereal.com/wp-content/uploads/2011/11/fiber_optic_orange_red_jpeg.jpg&w=1500&h=250

You can also Try adjusting your folder permissions to 777. Set these two folders to Permissions 777 (In your ftp program, right click on the folders and change the “Ownership & Permissions” to 777, Most likely the default is set to 755):

wp-content/themes/Momento
and
wp-content/themes/Momento/cache

Thanks for the answer. I can't find the folder you told me and tried to change permission for timthumb.php and cache folder but it doesn't work. I found instead a workaround with timthumb that works with my hosting provider (Aruba italy):
"On wordpress, download via ftp your wp-config.php file and add this line just after define ('WPLANG', ''); to allow for caching:

define("WP_CACHE", true);"

Thanks for your answer.

i use suggestions about "define WP CACHE" and the permission, but don't resolve the problem.
what can i do?

See above about the folder permissions. Please include a link to your site if you are still having trouble.

mcroy73, contact your hosting provider per my advice at the beginning of the post. You are getting an Internal Server Error:
http://www.cacciapuoti.com/wp-content/themes/Momento/timthumb.php?src=http://www.cacciapuoti.com/home/wp-content/themes/Momento/images/page-title.png&w=1500&h=250

Also, the image you have linked is incorrect:
http://www.cacciapuoti.com/home/wp-content/themes/Momento/images/page-title.png

You will need to contact your hosting provider as they are blocking the TimThumb script. When you visit the script it is not responding:
http://www.bryansnider.com/wp-content/themes/Momento/timthumb.php

It should be responding like so:
http://momento.progressionstudios.com/wp-content/themes/Momento/timthumb.php

Thank you I’ll give them a call

The page title image is not loading for me on the about page.

I recently reinstalled WordPress and everything works great except for this. I changed the file permissions to 777 on both files mentioned in your earlier post.

I get a 400 error - bad request when I direct the browser directly at the timthumb.php file

Any ideas on how to get this to work? If not, Is there a way to skip timthumbs.php since I am uploading the picture to the correct size to begin with?

Just send your hosting provider an e-mail with the link to the timthumb script. They will be able to quickly help you sort this out. Whenever the script just sends to an error, it's just your hosting provider not running the script.

Hi Mike, here's the message I received from my hosting provider. I don't get the impression that they are giving me the run around. Any help appreciated!
Erich

Everything is working fine. You just need to link to images from your own server. You are pulling from our live preview which is not allowed.

Try this url (Your own site instead of mine):
http://crossing7.com/wp-content/themes/Momento/images/background.png

instead of your current one:
http://momento.progressionstudios.com/wp-content/themes/Momento/images/background.png


See it works fine:
http://crossing7.com/taiwan/wp-content/themes/Momento/timthumb.php?src=http://crossing7.com/wp-content/themes/Momento/images/background.png&w=1500&h=250


Note: I edited your post as the e-mail is irrelevant.