i m developing web application .when i add new web page it's working but when i add web page and select master page and after that when i click on web page my pc is hang why it is happening can any body help me. i have installed visual studio2008 and operating system windows xp2 my system ram is 1 gb

Try watching your resources in the task manager as you run your page, and see if it's using an abnormal amount of resources. The development server (nor IIS for that matter) do good checks for memory leakage.
Makes sure your Visual Studio has the latest patches, make sure windows is up to date, as well as your browser.

If you try using fiddler, it may help, but fiddler won't pick up on localhost traffic, you'll have to connect to your computer name to get it to pick up.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.