After moving servers Thumbs don't display in the FCKeditor!#

Hello,
This is the second time this has happened after moving sites from one server to another.

Bascially when I'm viewing the image folder/ files within the FCK editor the thumbs aren't displaying. I've checked the site files manually via FTP and they are there.

I've typed the following urls in and the image displays but the .thumb doesn't.

www.domainname.co.uk/assets/images/slider_images/news/.news.jpg - Works
www.domainname.co.uk/assets/images/slider_images/news/.thumb_news.jpg - The file is there but just doesn't load/ display!

I've uploaded a test image and it works fine and generates the thumb and displays it.

I've also reset the paths in Tools > Congif...not sure what else to do.
Any help would be much appreciated!

MODx version: 1.0.3

Thanks

Hello,

You may want to start by upgrading to 1.0.5, as there are a lot of security fixes. As for the issue, could you tell us about the hosting (who/configuration)?