I have done something to my setting in solidworks. I i sketch a line form the origin and then press tab to enter the length value the line moves off the origin point. How do I sop this happening?

windows has some ugly keybord fast short cuts... maybe you have some of them wich rekeyed your keyboard.

not much help really..

I've never had this myself, but try posting this on www.productdesignforums.com someone there is bound to know.

HTH