[OS X TeX] texlive utility problem

[Alain Matthes]

Hi

I update TLU on an IMAC and on a macbook pro with SL 10.6.5 and now I have
 a big problem

in the console :
16/11/10 13:29:14	TeX Live Utility[593]	*** -[NSCFDictionary setObject:forKey:]: attempt to insert nil key

in the tlu window:

The program stops here :

2010-11-16 13:29:13 +0100 Notice -[TLMInstallDataSource _loadRootNode][593]	Profile detected from unreleased version; using new defaults instead.
2010-11-16 13:29:13 +0100 Notice -[TLMPreferenceController _texliveYear:isDevelopmentVersion:tlmgrVersion:][593]	Looks like you're using TeX Live 2010
2010-11-16 13:29:13 +0100 Notice -[_TLMDatabase _downloadDatabaseHead][593]	Checking the repository version.  Please be patient.
2010-11-16 13:29:13 +0100 Notice -[_TLMDatabase _downloadDatabaseHead][593]	Downloading tlpdb…
2010-11-16 13:29:14 +0100 Notice -[_TLMDatabase _downloadDatabaseHead][593]	Downloaded 4320 bytes

I have the same system, the same tex distribution on the two computers.

I try 
$ sudo tlmgr update --self
but the problem is the same

What is the problem ?

Best regards

Alain Matthes