Wonder whether anyone can help? I am running my PC under Windows XP, I am getting some excellent results with WACARS 0.7 scanning 3 Acars frequencies with a SB 1024 Soundcard and a Athlon Thunderbird 1.3Ghz processor. The Problem it uses all my processors CPU usage up and now and again crashes as you would expect at 100%. Any ideas on how to slow the CPU usage as I have tried? TIA Eddie Swift