Newby question

I have just downloaded KiCad on a linux machine and have watched your video's 1 thru 4. I created a simple circuit with 2 rectifier diodes and want to connect them with a wire. The cross hair will not land on the part terminal circle, and when I attempt to connect them the wire will not end on either of the two terminal connectors. Is this a grid problem? If you give me a hint of where to look, it would be very helpful.

 

Same thing happens when I attempt with two resisters.

 

Thank you.