This short tutorial of mine will show you how to enable/disable Java/JavaScript in Internet Explorer:
(Java is a plugin but javascript is a script used by some websites, and unless the proper settings are done, some websites will not display and/or function properly)

1. To enable or disable Java in Internet Explorer:
From the Tools menu, or the Tools drop-down in the upper right, select Internet Options... .

Click the Programs tab, and then click Manage Add-ons.

Highlight Java Plug-in.

Click Disable (located under "Settings" in version 7).

Click OK twice.


2. To enable or disable JavaScript:

From the Tools menu, or the Tools drop-down in the upper right, choose Internet Options... .

Click the Security tab.

Click Custom Level... .

Scroll to the "Scripting" section of the list. Click Disable or Enable.

Close and restart your browser.