Adding a menu

I have completed chapter 3. On the unit 3.7 i got stuck. my sudoku is going well but i did not get into menu option. Since i have done with the coding but when i press and hold D-pad or track ball on my screen. I never get into menu. The same problem is happening in chapter 5, where it is suggested to press D-pad up, down, right and left to get audio sound. I failed to achieve this but when i do the same through buttons. It works fine. In summary i am not able to perform functions with physical buttons on the emulator. Kindly elaborate the reason behind it.
Following is the log cat of sudoku.

[2012-04-04 11:55:52 – sudoko] —-—-—-—-—-—-
[2012-04-04 11:55:52 – sudoko] Android Launch!
[2012-04-04 11:55:52 – sudoko] adb is running normally.
[2012-04-04 11:55:52 – sudoko] Performing org.sudoko.sudoko activity launch
[2012-04-04 11:55:52 – sudoko] Automatic Target Mode: using existing emulator ‘emulator-5554’ running compatible AVD ‘em21’
[2012-04-04 11:55:52 – sudoko] WARNING: Application does not specify an API level requirement!
[2012-04-04 11:55:52 – sudoko] Device API version is 7 (Android 2.1-update1)
[2012-04-04 11:55:52 – sudoko] Uploading sudoko.apk onto device ‘emulator-5554’
[2012-04-04 11:55:53 – sudoko] Installing sudoko.apk…
[2012-04-04 11:56:02 – sudoko] Success!
[2012-04-04 11:56:02 – sudoko] Starting activity org.sudoko.sudoko on device emulator-5554

Thanks.