Thanks for responding.
I am using 123 reg as the host. They have said there's no current issues with their service, but did advise that WordPress works better on Linux servers (where their's are Windows based).
Should I add that to the config.phb anywhere in particular, or can it go at the bottom?
I've installed WP Super Cache, but that itself is creating issues. Two popups have come up the first being: Fancy permalinks are disabled.
Please enable it first, then re-attempt to enabling enhanced disk mode.
However going into this there is no option to enable it.
File and directory creation tests failed
Clicking into the task brings up the following:
Could not mkdir: \\web-123win\winpackage22\photographerfilm.co.uk\www.photographerfilm.co.uk\web\content\Site/wp-content/cache\test_dir
No idea what that means or what to do.