[kicad-users] Placing a wire

[glinelec]

My EeSchima seems to have stopped allowing wire placements.
If I select the add wire button the bottom right status shows Add Wire.
When I click on a pin the status shows Block Move and the operation
switches to block move even though the Add Wire button is "depressed".
I am have been using the system for a while and have not experienced
this before. 
Same occurs with add bus but not with add component or add powers.
Any ideas what I am doing wrong?
Version is 19 11 2007 Windows.