Release the scroll button. Your handheld should have a very small, blinking square in the upper left-hand corner of the screen. If not, repeat steps 1 - 4. At this point, no data has been lost from the handheld. Performing the standard reset will exit this mode.
Desktop computers are likely to require an infrared device attached to a physical serial port.
Laptops are likely to have a built-in IR port, so no external device is necessary. Your computer must also have an installed infrared driver. To clear the message, simply tap on the Cancel button. Making IR HotSync work can be troublesome in certain cases. Read through the following suggestions for help.