jump leads connected wrong!
Stupidly managed to connect jump leads wrongly when battery was flat. When I turned the key a strange green arrow appeared on the left of the display but after I tried to start all went dead. Replacing the 110 main fuse restored the usual dashboard lights which look normal but when I turn the key to start, the engine turns over the way I would expect but the engine doesn't start at all. Have I blown another fuse (somebody suggested ignition fuse or IEF fuse) or is there an Immobiliser which has triggered..?