Problems with latest Nero and InCD

I have the latest ver of both proggies but they won’t work together like they used to, e.g. I cannot format a DVD-RW and I cannot write to a preformatted DVD-RW from within Windows or DOS (Windows XP Pro or XP Home). When I try to write to one of my previously formatted DVD-RWs, I get “Access Denied”. NE1 have an idea of what’s going wrong? I can still copy DVD movies but absolutely cannot write to a formatted DVD-RW or format one. Thanks. coathanger