hey,
you're theme may be limiting the number of blocks that you can display. Check if theres some code like this
$a->setBlockLimit(2);
in your themes template file. good luck!

Thanks but unfortunately not, the template is one I've built from scratch.

Any other ideas, I'm really struggling with this one?

do you have a public url?

Sorry I don't, it's on my local drive. I take it there's usually no limit on how many blocks you can add to an area?

Thanks for getting back to me anyway.

No but your theme might be messed up somehow. Wanna stuff it and send it to me via email?

stev@mac.com

Thanks Steve for the kind offer but I spotted the problem. The blocks I'm adding are made using the Designer Content add-on. It seems that in order to add blocks one after the other you need to wrap them in an <li> and all seems to work.

The Designer Content add-on is terrific by the way (and free!). The only gripe is that the documentation is quite poor so it's harder to implement than it could be, but I suppose that's like complaining that your free beer isn't quite cold enough!

Thanks again. John.