Set debug mode to 1 (/conf/_advanced.php) then follow the problem link and see what it spits out as the problem. Delete that problem from your blacklist ;)

Then set debug back to 0 ;)

¥

Thanks.

I've done the first part (set debug to 1) and can now see debug information added to the bottom of my admin pages but don't know where to look for the "problem" and also, I don't know how to delete anything from my blacklist as I don't know where to find it!

Apols for being such a noob!

Cheers.

Ignore the above - matter since resolved. Thanks for your help.