Windows Mobile Quick Tip: How to disable the Message Sent notification
One of the first 4 programs you should download to your Windows Mobile phone is Advanced Configuration. This program can be used to change a number of settings on your Windows Mobile phone, including the disabling the SMS sent notification bubble.
- Open Advanced Configuration from the Start Menu >> Programs (assuming you have already downloaded and installed it).
- Click on the Phone tab (a the bottom of the screen)
- Check Disable the SMS sent notification
- Click Done
- Follow the instructions and allow the Soft Reset (which will happen automatically).