I haven't explained it clear.
Let's begin creating a stair. I get the archistair toolbar, pick on create new stair button and all the creation process starts. Until this moment everything goes right.
Once all the adjustments in the parameters of the new stair are made I press the OK button. Now the cursor should change to a pen and you should click on the screen to place the stair. But nothing of this happens. The selection cursor is still active.
I've made a test with the desktop computer (the one that works right). If you start the stair creation with the wall tool active (for example), the wall tool is interrupted. But in my laptop, the wall tool continues working, so when you finish the stair creation and press OK button to insert the stair, the first click starts a new wall.
Hope my explanation is better this time
No kind of graphic card problem. Actually only one floor level.
PD: thanks for your patience