I have a 1995 Super Sprint. It has an immobiliser and two key fobs. On each fob there are two buttons, one that has a pattern on it and a lower one which is smooth. I've changed batteries on both. In the car's parked state the dash lights flash quickly at about 5/second. I would have thought an armed state would be around 1 or 2/sec but I'm not used to these ones. Anyway, most of the time when I press the top (patterned) button for about 3 secs the light goes out and the car starts fine. However, sometimes when I press the button even for 10 secs or longer bugger all happens, the lights continue to flash quickly and I can't get any action when I turn the key to try to start. Then all of a sudden when I press the button as normal the light goes out. This morning it took a good five minutes to get any joy at all and I can't find out anything about this immobiliser what so ever. Hence my need of help because the last thing I want is to drive somewhere and then not be able to get the car started. Like a few other people have experienced I have found. Yet another little niggle that Caterham really should have dealt with by now.... BTW, the fob has a Vecta sticker on it So, any advice would be great....thanks