I can not tab down in Windows Mail. I have checked and the tab key works correctly in my browser, it works in OpenOffice. The only place where it won't tab down is Windows Mail. Can anyone help, please? 

My Computer
System One
-
- Manufacturer/Model
- Dell DXP061
- CPU
- 1.87 gigahertz Intel Core 2 Duo
- Memory
- 4 GB
- Sound Card
- High Definition Audio Device
- Monitor(s) Displays
- NVIDIA GeForce 7300 LE DELL E207WFP [Monitor] 20"
- Screen Resolution
- 1280x800
- Hard Drives
- SAMSUNG HD321KJ [Hard drive] (320.07 GB)
- Internet Speed
- DSL
- Other Info
- Avast Internet Security 7 / Malwarebytes Pro / WinPatrol Plus / Secunit PSI /