So I just went to boot up my Classic and got the following sad mac error...

00000002

0000FFF7

The first boot produced a bong, then the sad mac appeared, 2nd attempted boot I got no bong and went straight to the sad mac with some video artefacts. 3rd attempt I got no bong, still got the code  and a clean non-artefacted screen.

The machine was working perfectly the last time I used it.

Any ideas?