keyboard glitches...

Recently, after installing windows 7 to my windows vista laptop, everything has been running smoothly. I managed to fix the problems I was having connecting to internet, but now when I am typing, it will randomly act as is I am holding ctrl. So all the time, I will be typing, and it will open new tabs or new windows, or even close the browser. It will zoom in and out on the web page as well, without me holding ctrl at all. I have the latest drivers, and have made sure everything on my computer is up to date. It does not have to do with any specific browser, it does it no matter where I am typing. What's going on?

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