This page will assist you with troubleshooting any problems you're having with Audio Hijack Pro. Follow the steps in this troubleshooting guide and your problem may disappear. After each step, test Audio Hijack Pro again. If you reach the last step, and it's still not working, then please contact us via email.
Update
Be sure you're using the latest version of Audio Hijack Pro. Check by using the 'Check For Update' command in the Audio Hijack Pro menu.
Exclude Applications (Instant Hijack Only)
If you're using the Instant Hijack component, and you're experiencing problems with specific applications, you can try excluding them. AH Pro will not affect any excluded applications. To exclude an application, open the System Preferences and go to the APE Manager. Click Instant Hijack Server and add the application to the Exclude List. Once you restart the application, AH Pro will no longer be affecting it at all, and you can be certain any problems you're experiencing aren't related to it.
Delete Preferences
Try the old OS 9 standby of deleting the application's preferences. On your OS X hard drive, go to your Home folder and open Library/Preferences (~/Library/Preferences) and delete the file "com.rogueamoeba.AudiohHjackPro2.plist". As well, go to your Home folder and open Library/Application Support, and remove the "Audio Hijack Pro 2" folder.
Check for a messages from Audio Hijack Pro
Did Audio Hijack Pro give you any error messages? If so, pay attention to them! These error messages are designed to tell you something is wrong, and to help us diagnose the problem if you can't fix it. You may also see error messages if you check Console.app (located in /Applications/Utilities/Console).
If all else fails...
If these steps haven't fixed your problem, please (please!) email us for support. Send mail to audiohijackpro@rogueamoeba.com, and we'll try to get your issue solved.