Audio Prolem on Max Msp standalone

TransientJay's icon

Hi all, I'm fairly new to this so please bear with me...

I have created a max standalone (in Windows) which plays audio files through different outputs on my Focusrite audio interface. When I created the standalone, the correct audio driver was loaded and tested and the standalone worked. But all of a sudden one day, the audio just wont play and I'm getting the following message in the max window:

ad_mme: stopping due to error

The first part looks like something from the audio settings menu so am I right to assume it has somehow changed the default driver? Is it possible to set this back to the Focusrite in a standalone?

Thanks for any help!