hi all, saw some advice o here about papering which said to leave a very slight ridge at the paper edges which would disappear when the paper dries, not sure why but this hasnt happened and now i am left with a very noticeable but only slight ridge at the paper edges. does anyone have a suggestion on hw to remedy this? if i damp down a little and use a seam roller will this help? bit desperate as i have donw an entire wall.....oops wife will kill me !!!!