right guys, just had the car in my shed doing the service and water pump etc, I put the car in high and took the battery off and it stayed up the whole time it was in there, I did put stands under but they came out with ease, so there are definately no leaks in the bags at all, but once I started her and got back to normal height, when I closed the door it ticked a few times and went down a little bit, so overnight it must gradually tick a bit more and a bit more till it goes down as there are no leaks to let air out,,
but at the moment it is raising ok and not waiting a mile, that seems to happen every now and again but if i take the battery off a while it works again!!
this is a strange one as it's not happening all the time, but it may explain why my battery goes flat if I don't use her for a few days? anyone had this before????