guys, i just installed the alpha R21 on my nexus one and total sucess , the rom is really perfect tks to all , but when a shutdown the fone , and power it on again that i get a pop-up window saying that adroid/process/acore did not worked and asking to force close and try again, this starts repeating and repeating.... than i have to clean the fone and reinstall the alpha r21 and all come back ok again.... but if i power off the phone .... anybody can help on this? tks joao