Copy-n-Paste into Prompt window stopped working

Hi,

Per subject titles, we have a javascript that used to work in CS4 with copy-n-pasting enable but only recently did we noticed copy-n-pasting doesnt work anymore in CS5-CS6. The script itself still runs fine but without the ability to copy-n-paste text into the prompt window does slow us down a bit. Does anyone know the cause and solution?

Thanks!