If this happens on Windows Vista, then you need to upgrade NJStar Communicator to v2.71 or above.

On other windows, it seems NJStar Communicator IME can not hook the keyboard in order to input to IE. There are two possibilities:

1. Your anti-virus or anti-spyware program prevent njstar from hooking keyboad. In this case you need to disable the function such as 'key-logger guard'. You can test it by temporarily disable anti-virus and anti-spyware program.

It is confirmed that some version of SpywareDoctor installed a key-logger guard plug-in for IE, so even if SpywareDoctor is closed, NJstar still can not input into IE. In this case we have to remove the plug-in or unstall SpywareDoctor.

2. Your computer is infected with some virus that prevent njstar from hooking the keyboard. In this case the virus has hooked the keyboard, so njstar can not input. Please do a complete virus/spyware scan with latest virus definitions.

We recommend free anti-virus: AntiVir