If you go to your network connections in control panel, you can disable the wireless device. Simply right-click it and click disable.

--Andrew

Hmm..I'm not sure what you're referring to here. Are you talking about the ambient light on the bottom that lights the keyboard? If so, there's a button on the left that turns it off. If you are referring to the blue light coming from the back of the PC towards the bottom, that could be the device that connects to your mouse and keyboard, which lights up when getting input. Not sure if you can disable the light from that. Are those lights what you are talking about, or is there another light I'm not noticing?

--Andrew

The only way that I know of would be to go into Device Manager and then disabling the Wireless Network Adapter. Desktop computers typically don't have switches that turn off the wireless lan card.

I have had this problem twice now -- the most recent occurence being now. The switch at the front of my Touchsmart is 'off' (glowing orange) and I cannot turn it back on (glowing blue). I have tried to find the function key combination but to no avail and no matter how many times I push the switch under the light back and forth to turn it on, it stubbornly remains 'off' (glowing orange).
This happened before and was cured by my daughter and some friend one evening when I was asleep and they hijacked my machine to do troll for something or the other. No one else has been able to do a damn thing!
Any ideas?