Quote Originally Posted by Fasthosts Support
I'm not showing any problems on the server for sparkyslider.co.uk at the moment

However, 9 times out of 10 the issue you describe would indicate another domain on the server using too many resources.

Problem domains are removed from the server as quickly as possible, sometimes that means within an hour of them causing a problem. Other times it can take much longer to identify the problem.
Is their current response.

I am investigating the option of a dedicated server