No page change in 'Blogs Diectory'


I have the directory set at '5 per page'. There are ten sites in all.

Clicking 'next' refreshes the first five!!!!

If I reset to '10 or 15 per page' I get a full show of all sites.

So, not paginating for some reason!

Have deactivated all 'plugins' in turn to no avail!

Have check the Blog Directory Settings, which all seem OK to me.
Any ideas please?

Have re-installed the 'Blogs Directory'!!!!
Thanking in advance.