If you already have Quicktime installed, we've noticed that sometimes the Quicktime item in the Windows Control Panel does not update Quicktime 7 properly. This application is typically not installed on PCs by default. PC: Windows users should make sure they have installed Quicktime 7. See the following sections for more information. You may also have problems with your Windows firewall if using a PC. If you have never successfully watched any streaming Quicktime content on your computer, you may need to install or reinstall Quicktime. If you are seeing video without audio, or hearing audio without video, and you have already watched movies without problems prior to these symptoms, you could either wait a few hours and try the video again, or if you're using a wireless connection, make sure there are no sources of interference in the area, such as wireless phones or microwave ovens being operated (these can cause problems with WiFi networks). Quicktime movies streamed over the Internet can experience degraded performance when your wireless connection is experiencing interference or the network is congested with other users.

Windows 7 Firewall: Did you already go through this process?.Installing Quicktime Player 7 on OSX 10.6 Snow Leopard or OSX 10.7 Lion.We recommend following the steps outlined below if you're having difficulty in your browser. General FAQ | Quicktime FAQ Some of our courses use Quicktime streaming for longer videos, such as documentary or feature films.

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