XBian won't boot, white bar?

[mfgmfh]

ok. i got my new tv, i got my new raspberry pi, but xbian

the installation is very nice.. but i have to do it again and again.. so ******

my first encounter with the white bar was on my second day of having xbian. i just installed everything very nice updated my videofiles....
but then nothing --> i went online and tried all things that people recomended.. NOTHING works, thats not true NEW INSTALL.
i found out very fast, its the energy supply that was not working, so i replaced it and it was working fine for 1month and than the same again.

Something is really wrong with XBian!!!

PS.: ALL my files are gone EVERYTIME

PPS.: YES i tried different SD, different PI, different cable and ofcause "have you tried to restart your computer" YES YES YES...

No need to scream