Sometimes it works after 3-4 tries. 

No you can't just 'delete' after posting. It has to be submitted- a very poor way- it needs an edit

I cannot add on the portfolio page like I used to- there is no box to put a stock into to add. If I go to the SA page- on the left side it shows the portfolio and an add box- but the box is not functional in Safari or Chrome.  It should not be this difficult after using it for years.

Gary