2000 Jaguar Vanden Plas car Does not start

Hi, I asked a question about my 2000 Jag. It didn't start at times but then did if left for a few hours or/& overnight, then it might start. Now, It had completely died.I mean no power. I then had it towed to Jag repair service dept. They found a negitive cable to the battery was rusting out & replaced it. OK, after the call that the car was "fixed", I went to pick it up.I proceded out to my car with the service manager, went to start the car, guess what, same thing, no start, no fault lights. I'm so happy it happened there & they could now find this problem I've had with this car for the past 2 years. It was that the FUSE BOX was loose & I needed another one. (The mechanic pulled the fuse box, pushed under the wires, put it back & it started) If it didn't happen there, they would have thought as usual, I was crazy again. Of coarse we'll see now, but it did start after fooling with the Fuse Box, so try that before anything else with these no fault, trans fault, etc. Happens with a no start. Good Luck, Jon