Root Recovery help

[hotur]

I want to recover my phone to the original nandroid before i first ever started to root ect.

So i tried to go into the recovery menu and when i did it ended up with a black screen, with a cartoon htc hero on it that had a red warning sign next to it.

What does this mean? How can I fix it?

 

[Slug]

It sounds as if your handset has the standard rather than a custom recovery installed.