Bonnet release not working...

Heyup guys, have a little (Well, will turn into a big one when i come to fill my washer fluid up) problem. I was finishing fitting my central locking at the weekend, opened the bonnet to disconnect the battery. Opened up fine but now it won't.

I closed the bonnet and got back into the car and noticed the lever was stuck out a bit (as though you had pulled the lever about half way). If i pull it, it doesn't release the bonnet at all. First thing i thought was the cable had snapped, but then i noticed the lever still has a bit of resistance on it so i am totally lost for ideas. I will be due to fill up my washer fluid in a few days (i'm really anal by keeping my front and rear screens clean).

If anyone could shed any light on this, it would be greatly appreciated

Thanks

Matt