infared = optical though
''The Razer Salmosa is the quickest entry level gaming-grade mouse armed with the fastest tracking optical sensor in the world''
or
''Deathadder precision optical gaming mouse''
or
''razer abyssus high precision optical gaming mouse''
so its a improved version of optical?

Hi Razer Fan out there,

I have a problem with my Razer Tarantula keyboard
Which is the button <i> is not working properly
I have to press harder to use it, and this is irritate me
Since the warranty is out (1 year only)
What should I do? any place that can repair my Tarantula?
I already ask the All IT guys which where I bought, they says just buy a new one since the warranty is expired. Ayark!!!

Do u all have this kind of problem?