Gallery images generate new link

Hello,

I have a small problem with the gallery images on my website and it drives me crazy. I looked for an answer for 2 weeks now, and I can’t figure out how to fix it.

The problem: Every time I add a new gallery to my website, even if I select “open image file”, not attachment, if a click on it, a new window opens, and the page contains only that image.

For example:
http://vgfaq.com/guides/tomb-raider-tombs-locations/ – this is the page where the gallery is inserted. When I click on one image, it will automatically send me to:

http://vgfaq.com/guides/tomb-raider-tombs-locations/attachment/8-shantytown-tombs/

and if I click again…I finally reach what I’m looking for:

http://vgfaq.com/wp-content/uploads/2013/03/8-Shantytown-Tombs.jpg

I have no idea how to solve this, but I think that it has something to do with timthumb. Also, this happens only on galleries. If a post contains only one image, it is displayed correctly.

I’m using Arras 1.5.1.2.

Please help me fix this, or let me know if you need additional details.

Thank you