Photos not apearing

Hi, I'm having a problem with user uploaded photos not appearing - they just appear with the red X.

I've opened a ticket with support but not had much help.

Any ideas?

Please help

I would check your permission on the photo module folders.

- Do ALL of your pictures have red X's or just some?

- Do you receive any type of error during the upload?

Thanks Zarcon, it seems to be all except avatar photos. No errors when uploading on the site itself, but I get these in the error log:

[Tue Mar 15 21:18:17 2011] [error] [client 94.194.120.174] PHP Warning: array_diff() [<a href='function.array-diff'>function.array-diff</a>]: Argument #1 is not an array in /var/www/vhosts/mysite.com/httpdocs/inc/classes/BxDolFormMedia.php on line 300, referer: &bx_events_filter=add_event

What should the permissions be in the photos module?

Sorted....reinstalled the events and photos modules and it works fine now. Weird...