Thanks for a great program, just wish I could get it to work . I have installed REW on a laptop running Vista. I have a Tascam 144II hooked to my laptop and seemingly operating properly. I have read through the many help files along with the sticky at the top of this forum but for the life of me can not get past the 2nd step (Calibrate the sound card). I have looped the wire between the in and out on the tascam. When I press measure it just sits there saying headroom is at 90 and never moves. I am obviously doing something stupid but can figure it out. I do know that I am getting input through REW as the level of the channel selected is visible and I can adjust it to closely match as the help file states. When I push next several times it jumps to the levels window and just sits there forever at 0% without moving. Does anyone have an idea what I am doing wrong? I cant express how appreciative I am of help as I have been trying to get this thing working for awhile now without luck. Thanks in advance for any help you can provide.