I have a triple-booted Macbook Pro--OS X (10.6.8), Win7/64, Ubuntu 11.04, using rEFIt. That is, I did until about an hour ago. All of a sudden, I have no options at boot time. When I restart, I get an unusually long delay (about a minute or so), then it boots directly to OS X. I do not get the rEFIt selection screen. I also try rebooting with the Option key down, and get nothing at all; I have to power cycle and restart. When I look at the disk with Disk Utility, I can verify the Linux partition, but the BOOTCAMP partition has neither Verify Disk nor Repair Disk enabled. Strangely enough, I can navigate both partitions in Finder. So, here are the questions I can think of: 1. Is there any obvious, reliable solution? 2. In Disk Utility, is there a big risk in Unmounting and Remounting the BootCamp partition? 3. The issue with not being able to Disk Utility--> Verify the BOOTCAMP partition looks like it might be significant. I don't know much about boot loaders, but I wonder if that's where the problem might lie, and if so, how can I repair that? I'm trying very hard to avoid panic, but since my job depends on booting into Windows, this is pretty important to me. Additional information: I can run Windows from the Parallels installation just fine. That's not a permanent solution because my development responsibilities demand high performance that Parallels is incapable of. But it does tell me that the BOOTCAMP partition itself is functional. When I boot from the OS X install DVD that came with the Macbook, and select BOOTCAMP as the startup disk, it will not boot; I can only boot from the MacHD partition. The Linux partition is not visible as a startup option. From Disk Utiility, when I select the BOOTCAMP partition and click Info, I'm surprised to see No for both Writable and Bootable. The Linux partition, by comparison, is Writable but not Bootable.