Hi all.

I made this site a while ago to a costumer of mine.

http://www.prologica.com.pt/apple/

Last week he called me saying that every time that someone performs a 2nd search on the site it redirects to the shopping cart.

Since i didn't change anything on the site since I made it I really don't know what's happening.
I tried to check the code without any luck.
Reverting to the classic template doesn't help either.

Could anyone give me a help?

Thank you so much.
Pedro Fardilha