Access 2000 Security Warning

[Ian]

Using Access 2000 I am sharing a DB over a network of 3x PC’s, this is a
newly created DB with just one new table and no data.

I have had problems with it not opening from several PC’s over the
network, sometime with a message saying it cant find the file, other
times just not opening, sometimes I get a warning message:
“Security Warning, Unknown Publisher, Open Yes No”. If I create the same
new DB using a different PC (still Access 2000 service pack one) then it
works fine. On some PC’s and MDB will open over the network but when I
make it into an MDE it wont open, splitting front back makes do difference.

I have shared Access 2000 databases over this network and these 3x PC’s
for years and never seen this message, can anyone tell me how to make it
go away? I thought Publishers and Certificates were a Access 2003 idea,
do they apply to Access 2000?

Regards