well the problem with my query is that i can get sound when i play a media file in my system but i cant get the audio frm youtube can u guys help me?????
Have you noticed the volume box in the bottom right corner of the video screen. You might have turned it down or muted it before and a cookie might have kept it that way.

or …

2. It could be due to slow connection or high traffic.
Try watching it during off peak hours, the sound play will probably play better.

Or you could watch it offline… try using 'zillatube' . It plays the video much smoother and better.

It works very well….just google search for "zillatube", and select the first search result for download…
You speakers could be broke; volume could be turn off, or you need to install speakers (meaning re -install the speakers software)
…. here is some advice.. GOOD LUCK..

Internet Video Marketing Tips - The Potential of YouTube Subscriptions

One of the best ways to make sure your clients know exactly what you have to offer is through internet marketing videos. However, to be effective, your clients and potential customers need to know that they are available. YouTube, one of the most popular video sites on the internet offers a subscription service that can easily accomplish this. It's a great tool that can help you get your message across throughout the internet community. This internet marketing tip can not only increase your company's presence on the web, but also your potential network.

Internet Video Marketing Tips - How Your Business Can Flourish With YouTube Subscriptions

The potential of video has long been realized by the savvy marketing professional. The use of an internet video marketing strategy puts a modern twist on this old advertising standby. A subscription to your YouTube channel will not only let your viewers know when you have something new to offer, but also service as a gentle reminder of what you have achieved for them in the past.

Why Your Viewers Should Subscribe

Your Youtube channel subscribers will quickly and easily be updated about your new ventures, offerings, and even your thoughts about the future of your industry. This internet marketing tip is a great way to make sure your subscribers are the first to be in the know. The great thing is armed with that information they're likely to talk to their friends and family, or your potential customers.

Using Youtube is another great internet video marketing tip for the producer. The interactive nature of Youtube allows consumers to directly affect the evolution of the products or services that you offer. The information provided by this internet marketing tip can easily provide an indication of what your customer needs and desires.

Benefits of Subscribing for the Producer

Youtube can not only be a great internet video marketing strategy, but also has a number of other benefits. When you bring new content, your subscribers are notified, which can help increase the traffic to your Youtube channel and potentially your website. Also, since Youtube has the potential to be shared and forwarded by these subscribers, the chance for internet traffic increases with each new episode that you create.

One thing to consider is the time sensitive nature of your content. While the notification system of Youtube is usually accurate, it is not always delivered promptly. If you want to make sure your message is delivered in a timely fashion, the use of other internet marketing tips might be warranted.

Good Content is Paramount

Of course, before you make use of internet video marketing tips like this, your content needs to be extremely good. It doesn't have to be flashy or filled with vibrant colors to work; it merely has to provide your customers and viewers with what they need.

A subscription to your channel is not only a great way for your customers to get to know your company, but also a wonderful way for you to learn about their needs. By using feedback and other networking features, a dialogue between your company and clients can easily turn into productive ventures for both of you.

Travis Campbell, founder of MarketingProfessor.com, is working with small businesses and successful entrepreneurs clients who wish to leverage the power of the internet to automate marketing follow up, to build relationships with prospects and increase sales. Visit http://www.MarketingProfessor.com to claim access to subscriber only benefits.
Right click on the video box and click on settings, then go to advance settings. This will take you to the Adobe Flashplayer site. Go to the storage settings and delete all the websites listed. Restart your browser. Should work.
i think that this website will help you a lot
http://youtubetips-tricks.blogspot.com/