I’m running a website which uses attributes

With my current setup I have products setup with prices in the product level, then the attributes adding to price.

I would like to change this so that my products is priced by attributes but when I set this up the product just displays a blank screen where the product is and as soon as I put the product back to the current setup it works fine.

This happens with whichever template I use. I really need to get this sorted and hope I haven’t got to enter all the attribute prices and weights again.

Kenny