Prefix problem using attributes

[Guest]

Hi

 

Can anyone help!

 

Is there a way not displaying the + cross prefix when using an attribute price.

If one leaves this field blank, the cart displays the price as negative.

 

I basically have 5 options based on size per product as follows:

 

Size 1: price 1

Size 2: price 2

Size 3: Price 3

Size 4: Price 4

Size 5: Price 5

 

I currently have set the base price to 0 and hidden it from display. Are there any other options?

 

Any help very much appreciated

 

Cheers

 

Simon