jh71283 said:
Have you thought about SQL Server Compact Edition
As far as I know sql server ce  is for 1 system.  We need to support 1 -20 systems. Today we run up to 8 systems simultaneously and it works well  We don't go higher than 8 systems because then Access becomes unstable and corrupts more frequently. 

Today if a customer has 15 computers we lose the sale because Access can't handle it and we have no db to support them.