My headset was working fine but all of a sudden the volume will not stay at the level I turn it up to. It keeps rolling back down to barely any sound coming through. I try to use the button on headset but nothing happens. Any ideas why this is happening?

Good morning, afternoon, evening or night; whatever time of day you are viewing this solution post. Thank you for choosing FixYa to solve your problem. Your Logitech ClearChat Pro USB Headset's volume will not stay at the level you turn it up to, and as a result it keeps rolling back down to a lower sound quality. Your volume control button doesn't solve the problem neither. Well, when a problem occurs, you should first troubleshoot where it's coming from. We will use a method called "Process of elimination". Your headset's volume has two controls: one control is on the headset itself, and the other control is located in the sound settings of the device you have your headset plugged into. With this thought in mind, lets go up to the problem explanation above. You said that the volume control attached to the headset didn't make a difference, this means the you can eliminate the hypothesis that it's the volume control causing this. The problem is coming from the earphone portion of the headset. Either a mute setting has been activated, volume is turned down real low or your headset is not the default device to receive sound input. The first part of the investigation is done; now, to get further into the investigation, you will need to connect your headset to your computer. This is where troubleshooting and solving the problem meet. Step-by-Step, I am going to explain to you how to get audio presentations into your headset. This device works with two Windows Operating Systems (Vista and XP) and one Mac Operating System (OS X). If your computer's operating system is Windows, open your Control Panel. Under the Hardware & Sound link, click Manage Audio Devices (for Vista users), and the Sound & Audio Devices link (for XP users). If your coumputer's operating system is Mac OS X, open your System Preferences and click the Sound link. In Windows Vista, click the name of your device, then click Set Default. Click the Properties button and increase the volume slider or unmute the volume if needed. If applicable, click the Apply button, then click OK. If the Apply button is void, just click OK. Click the Recording tab and perform the same procedures as you did before, only difference is that this will make your headset microphone the default recording device. In Windows XP, click the Audio tab and set the headset as the Sound Playback and Recording device. Increase the volume or unmute it if needed. When finished, click the Voice tab and perform the same procedures as you did before. In Mac OS X, click the Input tab and select the headset as the input device. If you still can barely hear anything, increase the volume slider. When finished, click the Output tab and repeat the same steps as before; only thing, you will be making this the sound output device, meaning the sound of your voice will be outputed from the microphone. Increase the volume slider if needed. You should be able to receive sound in and out of your headphones now. If we succeded, through this experience we have: troubleshooted where the problem was coming from, found a way to solve it and fixed the problem! Thank you for choosing FixYa as your one-stop solution spot for problems, questions, concerns and requests. Visit our website again the next time you need assistance with something. Thank you and have a good morning, afternoon, evening or night; whatever time of day you are viewing this solution post.