This behavior is caused by Zone Alarm's ForceField browser security software. To prevent random characters being typed through LogMeIn, you will need to disable ForceField. To do this, please perform the following steps:
- Open the Zone Alarm Browser security panel.
- Click on Settings.
- Click on Advanced.
- Uncheck the box next to Block programs that secretly record your keystrokes.
- Click OK.
- Reboot the computer.
Once the computer has rebooted, you should be able to type the correct characters when using LogMeIn.