Well for anyone interested we are on our hols now and the weather has been very bad so far we have had rain and wind most of the time and the front window has been letting water in worst than ever.I decided to try something different as the crack in the panal is on the top of the window and set in the window recess and as water runs off the roof it goes into the recess and finds the crack then runs into the van down the inside of the window,so in a last ditch atempt to stop the water getting in I have run a length of two inch wide sticky tape across the length of the window just on the edge of the recess witch stops the rain from getting into the recess ,the rain just runs off the edge of the tape and drops onto the window and this seams to have done the trick no more water getting in this is only a temp fix till we get home then the van is going in for a full repair now just nope the weather gets better in Norfolk for the last week of our holls.Ian