I love my new Mac book pro. But I have one problem. I want to restore Lion. But it didn't come with the Mac book. Would I need to buy it again?

Hi, I'm new to networking. if we have two routers can you teach me how to configure them. Details are below.

Destination: 192.164.1.0
Mask: 255.255.255.0

Gateway/Next Hop: 192.123.11.150

I think I have a virus!

Everytime i set my IP address and the Subnet masks to the required they all turn ZEROs when I close the dialog box

Hi, I want to gain access remotely to a win 7 machine.

A welcome password has been set, and the regular person left the company.

So I want to do his part of the job as well.

How is this possible?

Hi I use the Mozilla (latest version). 

Sorry I can't find the version number of this. I start it and it opens. But in approx. 10 minutes and error message comes as "Source couldn't be read" and it shuts down.

What are the essentials of Protocols for communication on a wireless network? Kindly please explain your answer in a more precise and useful details. Thanks a lot!

I have switched off the current cabels but my NIC got struck by lightning which came through telephone line. Can this damage the motherboard also? My PC is working but it makes a CLICK sound when it powers up.

I have 3 networks running in each floor at my office. All the three routers are in a box. They are 24/7 on and no cooling is provided. Is cooling needed?

Can my data in the network get interfered with the current (AC household) line's frequency?

I want to network my machines- Win.7 and a WinXP one.

When I share the folders in Win 7 it works perfectly but when I shared the folders in the Win XP machine,

I can't view them in my Win.7?