Many web components on form and now can't create any more. Page just reloads

Hi all,

I seem to have reached a point with the webform components where trying to add more/re-order them results in the webform components page just reloading withouth doing anything. I've seen other issues in this forum but not any that have been resolved.

My memory limit for PHP is at 128MB and I don't have any other modules installed that will interfere with this one.

Anyone any ideas?

Thanks,
Craig