Some suggestions;
Check Google Chrome is up to date, if for whatever reason automatic updates have been turned off/aren't working. (Click on the wrench icon, then About).
Try loading it in Internet Explorer. That should already be installed on your computer, assuming you didn't take it off.
If it doesn't load in that then try running Windows Update (go to start menu, type in Windows Update) and let your computer search for updates. This will update drivers etc, in case it's a problem with those or an incompatibility issue with some other software on your PC.