ARGOMENTO: Errore visualizzazione anagrafiche con utenti

Salve, dopo varie peripezie sono riuscito a far funzionare Openerp.
Dopo qualche operazione girando per i menù ho provato ad aggiungere dei moduli con l'utente administrator ma mi dà errore. Lo stesso che mi da se loggato in openerp come utente voglio vedere un patner o un prodotto in magazzino.
Cosa succede? come mai non riesco a fare certe operazioni?
In questo modo non riesco a vedere le funzionalità del software

Grazie per la collaborazione

Dovresti dirci l'errore
guarda la console del server

Ok scusami, ti giro l'errore:

[2010-04-28 17:57:41,570] ERROR:web-services:[1945]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,584] ERROR:web-services:[1946]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,585] ERROR:web-services:[1947]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,586] ERROR:web-services:[1948]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,588] ERROR:web-services:[1949]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,589] ERROR:web-services:[1950]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,590] ERROR:web-services:[1951]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,592] ERROR:web-services:[1952]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,593] ERROR:web-services:[1953]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,594] ERROR:web-services:[1954]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,612] ERROR:web-services:[1955]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,613] ERROR:web-services:[1956]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,614] ERROR:web-services:[1957]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 102, in rg
[2010-04-28 17:57:41,616] ERROR:web-services:[1958]: return ids + rg(ids2, table, parent)
[2010-04-28 17:57:41,617] ERROR:web-services:[1959]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 101, in rg
[2010-04-28 17:57:41,618] ERROR:web-services:[1960]: ids2 = table.search(cr, uid, [(parent, 'in', ids)], context=context)
[2010-04-28 17:57:41,620] ERROR:web-services:[1961]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/orm.py", line 2999, in search
[2010-04-28 17:57:41,621] ERROR:web-services:[1962]: (qu1, qu2, tables) = self._where_calc(cr, user, args, context=context)
[2010-04-28 17:57:41,623] ERROR:web-services:[1963]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/orm.py", line 2978, in _where_calc
[2010-04-28 17:57:41,624] ERROR:web-services:[1964]: e = expression.expression(args)
[2010-04-28 17:57:41,625] ERROR:web-services:[1965]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 71, in __init__
[2010-04-28 17:57:41,763] ERROR:web-services:[1966]: if not reduce(lambda acc, val: acc and (self._is_operator(val) or self._is_leaf(val)), exp, True):
[2010-04-28 17:57:41,765] ERROR:web-services:[1967]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 71, in <lambda>
[2010-04-28 17:57:41,766] ERROR:web-services:[1968]: if not reduce(lambda acc, val: acc and (self._is_operator(val) or self._is_leaf(val)), exp, True):
[2010-04-28 17:57:41,767] ERROR:web-services:[1969]: File "/usr/local/lib/python2.6/dist-packages/openerp-server/osv/expression.py", line 37, in _is_operator
[2010-04-28 17:57:41,769] ERROR:web-services:[1970]: return isinstance(element, (str, unicode)) and element in
[2010-04-28 17:57:41,770] ERROR:web-services:[1971]: RuntimeError: maximum recursion depth exceeded while calling a Python object

che versione di OpenERP è?

Openerp server, web e client 5.0.9
Python 2.6
postgresql 8.4

mai visto quell'errore a dire il vero.

i permessi della cartella /usr/local/lib/python2.6/dist-packages/openerp-server sono OK?
l'utente con cui lanci openerp può scrivere li dentro?

ovvero, appena installato openerp, quella cartella è di root.

questo è un motivo per cui preferisco non installare openerp come modulo python