How do I sign on to internet using Ubuntu?

Sorry. Linux can't connect to the internet. You'll have to keep Windows around for that.

See the Ubuntu tutorials

For ADSL/DSL connections you use pppoeconf (to set it up)

Only use titles like help! if your life's in danger.

Jay Leno described a situation in which neighbors called police when they heard a woman on her porch calling out, "Help, Help." When the police arrived they ascertained the the woman was simply calling her cat, ... named Help.

Leno's question: "What's her dog named? Fire?"

What kind of internet connection do you have? Do you use a router? Please provide more information so we can better assist you.

I have fixed the title to make it meaningful

I have a dsl router. wireless network connection or local area connection with ethernet cable.

OK--glad to see you have a router. Makes things somewhat easier.

In your menus, there is a network setup utility---maybe in something called "settings manager", "control panel", or something similar. You will have the opportunity to enter a fixed IP address or DHCP---plus some other data.

The setup depends on how the router is configured. Are there other computers on the local network and is the internet connection working for them? If so, you can see how they are configured----and you can access the router setup by entering 192.168.1.1 in a browser.

If you are starting from scratch, I think most routers default to DHCP, so try that first. Also, if you just got the connection and the router, the ISP should have given you the basic connection info.