How to Disable a Pop-up Blocker if One is on Your System
Many web sites use pop-up windows for advertising messages that are an annoyance. Many users have installed pop-up blockers that will stop these windows from appearing, but they will also block legitimate pop-ups. Many pop-up blockers can be configured to allow one site to pop-up windows. WebCT uses a pop-up window for several of it's functions. Because there is no universal pop-up blocker, there is no one set of instructions on how to disable the blocker.
Listed below are several pop-up blocker programs, and links to the company's instructions on how to disable them.
Internet Explorer Pop-up blocker
Norton Internet Security and Norton AntiSpam
Mcafee Internet Security and Mcafee Antispyware
Internet Explorer Pop-up Blocker
With the release of service pack 2 for Windows XP, there is now a pop-up blocker included in Internet Explorer. This is the most common type of pop-up blocker found, so check this one first. Open Internet Explorer and click the areas indicated in the picture below.
Note: There may be multiple pop-up blockers from other programs installed in addition to Internet Explorer's default.
Norton Internet Security and Norton AntiSpam
The instructions are the same for both of these Norton products.
See Symantec support article: Enabling or disabling Ad Blocking and Pop-up Window Blocking
Mcafee Internet Security and Mcafee AntiSpyware
The pop-up blocker in use by most Mcafee programs can be bypassed by holding down the CTRL key and clicking on the link of the window you would like to pop-up
The Google Toolbar comes with a pop-up blocker that is enabled by default. Google keeps a running count of how many pop-ups it has blocked, click on this to allow pop-ups for the site you are currently at as shown below.
Below is a picture showing how the tool bar looks when the pop-up blocker is disabled for the current site.
The Yahoo Toolbar comes with a pop-up toolbar that is enabled by default.
See Yahoo support article: How do I turn Pop-Up Blocker on and off?