I have reset my them to have the 2 sidebars move to the right at 25% each. This is working very well on my computer in the house. Theme displays very well. I am using Firefox 10 and IE8. All is displaying well on my computer.
BUT I decided to check my site at the local computer centre and everything has gone to pieces. The sidebars have returned one to left and one to right (default display). The whole site has gone to pieces.
They are using the same browser as I have in the house. IE8 and Firefox 11.
What is causing this?