If another device is set as default device, simply select the correct device and press the 'Set Default' button at the bottom of the window. You will see this indicated by the green 'tick' icon. Your speakers / soundcard should be listed as the default device. Windows XP: Go to Start > Settings > Control Panel > Sounds & Audio devices > Audio Other devices like Bluetooth adapters and modems can have their own audio function integrated and can sometimes be used instead of the system soundcard. It is possible that the other applications may have control of the sound card and have locked out Studio. Please shut down other media playing software while trying to use Studio. Now click the Driver tab and you will see all the driver information including Driver Provider and Driver Date. To determine the manufacturer and date of the video card driver, double click on the video card name. In Device Manager the sound card is displayed in the Sound, video and game controllers section. If you are using Windows Vista, just select the Device Manager button directly from the System window. If you are using Windows XP you can select the Hardware tab then click the Device Manager button. You can get to Device Manager by right clicking on the My Computer icon and selecting Properties. You can determine what sound card you have by checking in Device Manager. Make sure that you have the latest drivers installed for your sound card from the manufacturer's website.