BB Bold :: 9700 Blank White Screen But Still Working?

I was recently received a brand new Bold 9700 from an aunt in Canada and I had only been using it in the UK for 3 weeks when the screen suddenly went completely white.I can still receive calls, and I can hear bbms and emails arriving but I can't see anything at all. I've have tried the battery pull many times but it still remains the same. I've been told that RIM usually offers a year's warranty on new products but because it was bought in Canada, none of the networks here in the UK are willing to take it in for repair.