Solo2 Flash memory

Hi all

I installed my new 1 TB HD today. I use to have EPG on the USB and Picons on the flash memory.

For some reason, when i added the HD and removed the USB stick, the EPG was downloaded onto Flash memory.

I have now re-configured EPG to point to the HD.

Do I need to delete EPG download from the flash mem? If so, how do I do this?
Is using the HD the best place to store EPG as I cannot seem to select the USB stick in EPG setup.

Thanks