I have an early 2008 MacBook with Mac OS X Lion installed. I made a partition with Windows 7 Ultimate which I can boot into by holding the Option key on the Mac keyboard.
After installing updates on the Windows partition I can't boot the Mac anymore. It won't boot with the Option key held down, it only shows the mouse pointer and nothing else on the screen. Normal boot freezes on gray screen, safe boot doesn't work. I have tried all of those.
I don't have another Mac to do the FireWire boot. I also don't have an OS X installation disk, so I can't boot from disc. What causes these problems? I do have a Mac OS X Lion installation USB drive but I don't want to setup OS X again and/or loose my data.
This is the second time this has happened with this Mac. The first time I didn't even have a Windows partition on the machine, and I suspect that the first time these issues were caused by Firefox updates. Any advice?