I've had this error five times now. I've redownloaded it three times, I've tried installing from DVD, USB, and internal HDD. It hangs on 90% for a few minutes then suddenly switches to "Your PC will restart in a few moments and hangs there for another few minutes before seeing this error. I'm using a Lenovo ThinkPad Edge E420s with Windows 7 Home Premium on the HDD and Ubuntu 11.10 on an mSATA SSD. Any ideas on how to fix this?