Ignoring query to other database

i researched for a while on the net and found that more people have
this problem, but could not get an answer.

i am very new to MySql.

linux - feudora

i log into mysql using "root"

when i am in mysql, and i type any comand, like show databases, i get
the "Ignoring query to other database" line.

the database is running fine, i use it for my web site, and i can
access it with MS Access from a windows computer.

Some previous posting mentioned --one-database option, could you
provide a little
more detail on that? If you have ANY suggestion on where should I go
to solve the problem, I would really really appreciate it.

regards, dimitri