Ok, so i decided to try out the new PT4. I installed it and did some quick postgresql bussiness (clicked ok or next everytime i had to) and now it doesnt work at all. I reinstalled both PTx and postgresql like 20 times and still nothing.
When i try to run PTx, i get this:

I click on connect, it tanks for a while and then this:

I click ok, then i get the first tab and i click on cancel:

Yes/Ano

(pt4 does the same btw)
So apparently those details are wrong, however i have no idea what login/password/ i put there when i installed it in the first place. So is there any way of getting this info or to just make a new database? Preferably the first option. I have no idea how this thing works so any help would be appreciated.