Flip Up Light Problem!

[doski]

hey can anyone help with my problem?

When i turn my head light on or flick the head lights up switch my lights come up and on with out a problem but when i turn them off, only the drivers side comes down. With the head lights off i can manually put the headlight down and it stays down, when they are up if i manually try to put the offending headlight down it goes down a bit them the motor recycles the light and puts it back up, so its still working to an extent. Any ideas??

thanks