SSO issue(NW EP 7.0)

Hi Experts,

we have NWDS 7.0 and IE9.I tried to log in on my computer and the first time It didn’t ask username and possword .As I tried to log in for a second time and thereafter the database asks me to put a password to get in.This is a single sign on application,i have all required access.

Could you please help on this issue.

thanks in advance

Regards,

Prasad