after checking fuse-central locking wont work now?

hi-i have vaux astra 07 estate-boot wouldnt open-was checking fuses,removed central locking fuse by mistake (was fine and put back) changed the boot fuse which had blown and boot opened-however now the central locking wont work! any ideas? just tried putting key in igntn turning to position two and pressing lock/unlock nothing happened .....any ideas?