Is the blue led glowing? If so it'll be because BTN1 was pressed when you hit reset or plugged it in and it went to bootloader mode - just try pressing the RST button again (with the Web IDE disconnected).
Have you tried rebooting your computer (not sure if you meant you'd rebooted the PC or Espruino)? Sometimes windows gets confused if you reset the board with the Web IDE connected.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Is the blue led glowing? If so it'll be because BTN1 was pressed when you hit reset or plugged it in and it went to bootloader mode - just try pressing the RST button again (with the Web IDE disconnected).
Have you tried rebooting your computer (not sure if you meant you'd rebooted the PC or Espruino)? Sometimes windows gets confused if you reset the board with the Web IDE connected.