How to disable orientation change in Android?

I have an application that I just would like to use in portrait mode, so I have defined android:screenOrientation="portrait" in the manifest XML. This works OK for the HTC magic phone (and prevents orientation changes on other phones as well).

Do you have to restart apache to make re-write rules in the .htaccess take effect?

I have pushed my .htaccess files to the production severs, but they don't work. Would a restart be the next step, or should I check something else.