password reset doesn't take…

When I set up my www.ads-software.com site, my password didn’t take because I had to reset it. I went through the process of resetting it with the password that wordpress sent me and then have twice tried to reset it in the admin dash with my own password. It saves, but if I log out and then later log back in, it won’t take my password. It will also not save the automated wordpress either. So basically, every time I log in to my dashboard, I have to reset my password. What can I do to change this???