Hi,
First of all let me introduce myself. I, debarya das have 6 years of industry experience in Drupal, PHP, MYSQL, Jquery, Javascript. I have worked in different kind of projects like e-commerce, community based application, learning management system etc. For further information, please check my portfolio. I have Drupal profile also. Please check my profile [login to view URL]
Regarding the issues that you described, I observed the following
The no. 1 issue appears from the second time after you visit [login to view URL] and try to submit without filling up the mandatory fields. This is due to the reason that a cookie named 'popup_onload_time' get set when you submit the form. There is probably some checking depending on this cookie value whether the popup will be shown or not. because if you delete the cookie value and reload the page, the popup will be appeared again with validations(Though the validation messages are not being displayed).
The no 2. issue could be due to the same problem. It need to be checked.
It can be solved 2-4 days. Please reply what do you think.
Waiting for your reply.
With Regards
Debarya Das