Operating system?, browser version you're using?
Just a guess here, but if you don't have Java and Flash installed, please click on the links below and download/install them both:
Download the full "offline" installer, then install the "Java Runtime Environment (JRE) 5.0 Update 10"
Next, install the Flash player from the link below:
Next, if you haven't try a different browser, such as Firefox, please click on the link below and download/install it, then try again.
Hope this helps.
I know this is something simple to fix but I am computer illiterate...I'm taking an online course,after I have logged on and gotten through two or three pages of the course a blank page pops-up. The page only pops-up on my computer.I have contacted the courses tech support and they have no clue what it is...please help.