Keyboard Problem

Hello there, I've used my keyboard which has extra keys like Volume +/-, media next/back button on my Windows 7 RTM 32 bit. It had worked perfectly until 31/12/09. On 1/1/10 the buttons stopped working for no apparent reason and its not the keyboard's fault because its working on my laptop without any problem.

Is this one of Windows 7 bug? Any solutions regarding this matter?

Btw, the keyboard is a wireless plug and play and doesn't comes with a driver so don't bother suggesting to look for driver.

I tried system restore a few times but it was unsuccessful.

=/ There is no roll back option in the Device Manager option since the drivers are not updated and there is no new drivers available to be updated also.

Its a powerlogic r5000 wireless desktop set.

Yea it was me, but once after reformatting windows , I was able to use it since then but problem occurred since 1/1/10. I don't want to resolve reformatting my pc since I have lots of stuff in it and buying new keyboard would be a wastage since this is working fine on other places.

The thing that caught my attention is how come it stopped working after the new year. I didn't install anything in the period of time / did not update Windows, it just stopped working.

if your keyboard came with it's own config utility i'd check that.