Items Mixing between tables /LS Retail 6.02 with Nav 2009 R2

Gfox

Hi everyone, i got the following scenario in a restaurant using ls retail 6.02 with dynamic nav 2009 R2:

I got a pc working with a local database server, this one is used by the cashier and i got a second Pc connected in this same service, this one is used by the sales person. The idea is add more pcs, in order to use many sales persons and get faster service to clients.

The problem is, whenever i add more computers to be used by additional sales person, the items begin to mix between tables.

Thanks in advance for your answers.

Best regards,