@theissen and @ parejan - thank you!
My plan was to try each one for 24 hours and see which one would work the best.

As I started removing/adding projects, Boing could not connect to Gridpool any more. I dropped and set again gridpool & I changed/re-set my password in Gridpool manager... Nothing helped. So i decided to uninstall Boinc. I deleted all hidden/setting files (Luinux) and (beginner) didn't distinguish between wallet and Boinc, so i uninstalled and deleted everything, now my wallet is gone :-( Nah, didn't have backup yet, i'm in process setting stuff up... for almost a week now

I installed back Boinc but an old task/project is still in and I still can't connect to Gridpool. So, basically I lost wallet but I kept the problem. Reinstall didn't solve enything. I really don't have much luck with this for now. And as of right now I hit the road block and I don't know what to do next.

The latest is, I can't add in Boinc Gridpool. I always get a note that it failed. And it is not set already