Random files width

[Andorin]

My Coppermine-template is almost done, but there are some widths I cannot fix. The first one is one the frontpage, the box called "Random files". It's wider than the total width of the board I chose (470px), and therefore it looks wrong. It's four pictures next to eachother, that's why it's so wide. Can I have two pictures on each line instead, and make the whole Random files box smaller? In which file should I look, and what to do?
Last Files looks okay, it's just the Random Files box that is too wide. The album list when entering a category is also too wide, in short, a lot of the boxes is too wide in the style. Why does not the total width of the board work?
The first question is very important, how to use two pictures on each line instead of 4. In the gallery index with all the small pictures, when clicking a category, all pictures is 4 on each line, it should be 2. Thanks in advance.

[Andorin]

Anyone?

[kegobeer]

Config -> Number of columns on thumbnail page

If you haven't read the documentation yet, I highly recommend it.