Solution Programs aren't working like they should. Follow proper shut down procedures to turn your computer off. Then restart and see if this fixed the problem.
Computer often locks up when disconnecting from the internet.
This works on Internet Explorer, I'm not sure about Netscape. Now, right click on the program and select create shortcut. When the short cut appears right click on it and select cut. Now, minimize all windows and right click on an open area of the desktop and select paste. Which mouse button does what Just remember this, The left button selects and the right button gives options.