1.) What security and/or privacy software do you use? It could be that the software is stripping code from the website and blocking the images.
2.) Are you behind a router? (Same reason.)
3.) Have you checked your HOSTS file? It could be set to block various cnet-related sites including com.com.
4.) Check your Fonts folder through the Control Panel and see if you are suddenly missing the defaults.

Let us know.
John