Flying the Wipeout, and using the guided missiles, if you press 'T' to select a target, it only occasionally seems to work.
If you press 'R' however, the target will be easily selected.
'T' works fine in other areas of the game (perhaps because it is used to 'hardlock' targets that are already 'selected' - ie, to place the diamond over them when the square is already there).
This is very noticeable on the fixed-wing showcase. 'T' *does* occasionally work, but it seems very hit-and-miss. 'R' does it straight away.