Using WinEEG 1.4 and Windows 98 SE on a slow Toshiba satellite PC (processor speed 2-300 Mhz) I get the similar results after 500 seconds the EEG shows the no. 157, and is not changed by changing "paper speed". We have been basing freq evaluation in the raw EEG on the number of wave tops seen in a "one second epoch"..., which actually is more like a 3 second epoch? -- Joe ______________________________________________________ Få den nye Yahoo! Messenger på http://no.messenger.yahoo.com/ Nye ikoner og bakgrunner, webkamera med superkvalitet og dobbelt så morsom