Windows 7: Front Jack Error

I just Installed Windows 7 Ultimate 32-bit. have Installed all driver for my comp and Realtek HD of course. but the front jack is not working!!!!! when i used XP it's still working but when i change it to Windows 7 it's not working!!!! i have downloaded the latest Realtek HD but not change anything...anybody can help i hate playing game without using headphones

Do you have the Realtek HD audio manager installed?

Have you set the default playback device?

The audio manager should detect when you connect your headphone and microphone jack and pop up a window asking for the desired options.

You should see the analog jack icons change colors when you have something inserted in it.