Hello Listers: In the past I used my Dell Inspiron 1545 32 bit System, and I was using studio Recorder Version 3.8 to record Using my Samson Studio Microphone with no problem at all. However, I switched the system to 64 bit because it is the factory processor's speed and I cannot record with my Studio Microphone as I could before. I let you know that the Microphone has its own volume control, so what I did when running at 32 bit, is that I set the microphone's level at 0 in the control panel, and I chose the volume level with the devices own control. This was to avoid a ssss sound when playing what I recorded. However, now that it is running at 64 bit, if I set the control pannel's microphone level to 0, and choose the desired level with the devises own control, my voice is not heard in the recordin I make. Any ideas. Please reply the sooner you can to the user's list e-mail. Thank you very much and I hope to hear from you very soon. Best regards, Livio Novi.