Due to the large variety of ROMs and setups out there, when posting questions, can everyone please include what ROM they are running including the version (can be found in settings>about phone) and if you are running a stock ROM, identify if it is froyo or gingerbread and if you are rooted or not.
This information plays a very important role in troubleshooting issues since the solution can vary from ROM to ROM and whether or not you have root.
This is a great place for help and there are many talented people here helping out. It just helps everyone by not always having to ask what you are running.
--Mods, maybe a sticky for this? If you do, feel free to edit out this line.--