Bootcamp problems

I recently installed Bootcamp on my Macbook and all went well (so it appeared)

Now, whenever i want to boot up into windows I have to boot leopard, then go into system preferences--> startup disk and choose restart in windows.

If i hold down the alt key at bootup I only have 1 boot option, Mac OS X...there is no option to select the windows partition.

Does anyone have any idea why this is?

Any advice would be really appreciated!!