When I click the McAfee icon in my taskbar I get a page but there's not text on it. What could be the reason?
This usually caused by using beta browsers. Do you have IE10 installed.
That is 1st cause second is a corrupted install that is usually fixed by an uninstall reinstall via
reboot and run
Reinstall from your account
Of course I assume you do not have another AV installed taht uses real time scanning?