The Shift+Backspace problem occurs with certain combinations of keystroke compatibility and customizations, if they are carried over from TextPad 3.2.5. It can be fixed as follows:
1. From the Configure menu, choose Preferences.
2. Select “Keyboard”.
3. From the list of Categories, choose Edit.
4. From the list of Commands, choose EditBackspace.
5. Type Shift+Backspace in the shortcut box.
6. Click Apply.
7. Click OK.