Roxio Fails to start

I have a new Inspiron Desktop 560MT. Windows 7 64bit.

Purchased Dec 2009, but not run for the past fortnight. Today I tuned it on and went  to Roxio - Roxio Burn. It started, and asked me to insert a disc to copy. Whilst I was looking for one, some software / patch update advice popped up. I think it was Critical update 2010 or similar. Can't remember exactly.

Anyway I accepted it, and it appeared to download and install.

Now when I go to Roxio burn, nothing happens. No error, no prog, ziltch / zero!! No matter how many times I try and open it!

I did do a system restore. The update was not shown in system restore, but I'm pretty certain that I went back to before the update.

No change.

Had a look on the supplied CD's and there appears no Roxio there to re-install the original. Also nothing on the Dell download page either.

Broken for good, or can someone please assist?

Thanks