Grub error

view full story

http://www.linuxquestions.org – I have windows vista. i tried installed linux-ubuntu 9.10 but not knowing after a point on how to proceed further, i quit half-way. so my partition (14 gb)remained wasted. i tried installing again in a new partition and got it done. from my newly installed lunux, i tried to delete that 14gb partition. and now when i restart my laptop, i get this error : GRUB loading. error: unknown filesystem grub rescue> i would like to know what exactly has happened and how do i get this resolved. please help. thank you! (HowTos)