Hi Alberto, I run win 98 on a 500 meg computer in my shack, the only problem was a occasional crash, but after downloading the new version I haven't had a crash. I works great. thanks for giving us LOWFERS such a fine program to work with. I use the CW mode on my IC-706G and the freq. is inverted on ARGO. Is their any way (other than sw. to SSB) to invert the scale.. Lewis IP @ 185.3085 QRSS God Bless America