I am trying to make a "book & upgrade with miles" flight from OSL-LHR-SFO return in january 2011.

It show plenty of availability, but when I select dates and click "GO" i get an error:

"You can only book 355 days in advance on BA.com etc etc etc bla bla bla"

It is not 355 days in advance. And I tried LAX too and got the same response. Any idea anyone?

EDIT: It was my own fault. Nothing wrong with ba.com