Bell tent help please

[FlamingoBingo]

We can't seem to get our bell tent door not to be pulling across the middle.

We've done what the instructions say ie. moving the two guy ropes nearest the door so they're nearer the, um, door. But it hasn't helped.

We ended up loosening those to guy ropes quite a bit to release the tension so we could shut the door and so we knew the zip wasn't under loads of strain.

So...any ideas? It's an obelink one, btw, with the A-frame for the door.

We've done both those things already

It's about half way up the door that the tension is at it's worst - if we can zip it past that bit it's not too bad.

It's very irritating because it's otherwise perfect!

However, the slack guy ropes either side of the door didn't seem to cause a problem, and we had some heavy rain while we were away. It just doesn't look so perfect.