When making a call on my dell venue windows 7. 5. the keyboard screen hides. I cannot find setting to keep the keyboard active. The call cannot be ended by me at all. I have to wait until the line is disconnected on the other end to regain any function of my phone. I have tried using the under keyboard to disconnect calls but don't know what is used to end calls using the phone keyboard. However I would just prefer to use the touchscreen keyboard if I knew how to unhide it during calls. Also because hiding problem I cannot access calls needing tenkey prompts to complete calks