Chaps, First post so be gentle-I have a specific app I use for network testing called Fping http://www.kwakkelflap.com/fping.html. It all works in WIndows but I'm trying to make the cross-over into Linux and this is a tool I use on a daily basis, hence the need to make it work I did ask on the Ubuntu forums but got short shrift, being told I should use the built in PING tool-fair comment but this app has a few more things in it-and besides, I just *like* it! ;-) Doing some research, it seems something to do with the hook into Winsock? I have tried WINE but all I get is a "file not found", when the file is clearly there, in the dir I have put it. Could one of the more experienced memebers on here (I'm still learning on LInux) give this a try and see what they find out? Thanks cabs