SMB and AFP connections to a NAS box

Hi there

I've recently installed an Iomega 150D Nas box on our network. I had problems saving quark files using the SMB connection which our MACS connected to the box automatically with.

I disconnected the SMB connection, created a new AFP connection using command + K and typing in the IP address of the server.

This worked great, and we want to stick with AFP. However when we restart our machines in the morning they come on but they restore the SMB connection. We then have to remove this and recreate the AFP connection. This is because our quark files can't be read when we've saved them via AFP and open them via SMB.

Is there a way to force the MAC not to load the SMB connection to the file server and automatically load the AFP connection instead?

Thanks for your help

Nick