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kiwitrc:PeterQ: That is not right, screws and glue are used constantly throughout the building industry as I do and screws are recommended
Builder mate just said the same thing, 50mm stainless screws and SB glue.
I wouldn't use stainless screws unless you drill pilot holes before screwing in, they are quite brittle so tend to break if screwed in too hard and might not handle stresses of joist movement. Normal square or multidrive screws with self countersinking head should be the ones since the floor shouldnt be getting wet anyway, and you will need a #2 square driver bit to match them on your drill/driver.
The advice about using nails seems to NOT allow for horizontal movement (am I wrong?) as the particle board expands, but the idea of filling a groove between each board with gorilla glue or something more flexible should allow movement the best since not gluing them hard onto the joist (maybe less effective for stopping the squeaks unless combined with some nails?).
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