I read on a site that when error 141 comes up it is a transistor gone down, I have downloaded the version 7.7b so i will give it a try, I have been using my spare cas3, Just tried it, it is definitely not the soft ware, As i have just changed them over and it still says error141, my new one is o/k. It has to be a transistor gone down, Not bad when you think the transistors are just over a £1 00 for 4, I think there is only 3 in the cas, Easy to change as long as you get the E.B.C. the right way around,