Grub 1.97 beta4 can't boot Help!

[Katokato]

I press the power button on my computer and when grub loads it says:

[minimal bashlike editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device/file completions]

sh:grub>_
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how do i fix this?
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well i actually got ubuntu to boot up by loading the kernel and the modules and everything by following the commands:

* ls This will display the known devices and partitions. From this information, the user must determine the device and partition on which the system is installed.
* set Check the current settings. Note the prefix listing. If it is not pointing to the correct location:
o set prefix=(hdX,Y)/boot/grub Examples: sda1 is (hd0,1), sdb5 is (hd1,5)
* set root=(hdX,Y) X is the device/drive, starting with 0. Y is the partition, starting with 1. (Example: (hd0,1) is sda1. (hd3,5) is sdc5.
o For Wubi installs, use: set root=(loop0)
* ls /boot Inspect the contents. The user should see varioius kernels, initrd images and the grub folder. If not, use the ls command to inspect the device and attempt to find these files and folders. If necessary, set another device as root.
* insmod /boot/grub/linux.mod Load the linux module. Without this module loaded, the user will receive an "Unknown command linux" message when trying to load the kernel.
* linux /vmlinuz root=/dev/sdXY ro Load the linux kernel, substituting the correct designations for "X" and "Y" (example: sda1). The user will see a message showing the kernel has been loaded. (See graphic above)
o Note: For Wubi installs within Windows, use this code: linux /vmlinuz root=/dev/sdXY loop=/ubuntu/disks/root.disk ro
* initrd /initrd.img Load the initrd image. When pressing enter, the user may or may not see a message in the terminal. (See highlighted graphic above)
* boot
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now when i restart, it still says minimal bash like editing is supported......

so how do i fix this so it will show my other operating systems along with ubuntu? (i have win vista, 7, and ubuntu)




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