[quote paul]
We have 2 laptops - both running XP sp2 with FB1.5 SS. On one localhost
works in a connection string and on the other it doesnt - gives the error
cant open file localfilename (without localhost on the front).
We need localhost to get mutiple connections for multithreading - any ideas
what to look at?
[/quote paul]

check in windows\system32\drivers\etc\hosts if you have a line like this

127.0.0.1 localhost

or try in command line

ping localhost

i you will have back no response add the line above

Codebue Fabio