Update issues

I have a netbook with Intel Atom N270@1,6GHz, 2GB RAM with Netrunner Frontier installed in dual boot with Windows XP.
After installation I was notified to update system and programs. After updating I restarted Netrunner but it froze in the inicial screen. I tried the recovery mode and other alternatives but nothing worked.
Than I had to reinstall Netrunner but without updating.
Any suggestion?