Mouse pointer moves on it's own, pages zoom in then fly off screen, total chaos HELP!

I recently wiped down my mac book lap top, running version 10.7.5, just to clean something off it.

I must have pressed some wrong collection of keys, because now suddenly, chaos reigns.

The mouse pointer (Logitech wireless) moves erratically on it's own, and is almost impossible

to control when trying to click on something. Safari pages suddenly fly off the screen to each side.

Or they suddenly zoom in large. Or they slide off another page

and disappear altogether. Or suddenly, all pages disappear and my screen is covered with large icons

that exist in my tool bar. It's insane and everything I've tried - powering down, rebooting,

going into preferences, etc, isn't working. Can't imagine what I pressed while cleaning

the laptop keyboard, but it's suddenly acting extremely erratic and strange and I've never

had any of these problems before.

Any thoughts as to what I did and how to fix this? It has to be something I pressed during wiping it down

because this has never happened before until now.

Thank you