I have a running Windows 7 and installed Precise along with it just this afternoon. I was doing a manual partition configuration.
On the part where I get to set what partition to install the bootloader/MBR I chose the Windows partition. Now every time I choose Windows 7 from GRUB, it just reverts back to the GRUB menu.
I've been reading around the web as I type this and found this tool 'Bootinfo' to let you see my configuration. Here's the pastebin: Boot Info
Any help would do. Thanks!