WP Memory Limit

Hi

I have uploaded the theme onto my server (Bluehost - Business Pro) but the system status says I need to increase the memory allocated to PHP, which it shows as currently 40M. I have changed the PHP memory limit is to 256M with Bluehost's help but the error is still showing on the theme system status. Please can you help?

I have screen shots if you would like to see?

Kind regards,

Joanna