Dave is having trouble with Internet Explorer crashing after Windows hibernates. Leo says that he has the same issue in Windows 8 where IE crashes every few pages. He recommends running the recovery or installation disk and choosing "Repair". Windows will scan his Windows installation and repair any damaged files.
In the chatroom, the suggestion is to try a restore point. Restarting from hibernate isn't really a proper restart, either. It's best to just reboot the computer completely when it goes into deep hibernation.