944 sunroof removal

[gilbertd]

I've just bought a new sunroof seal for my wifes '86 944. How the hell do I remove the roof to fit the seal?? It is an electric one and I'm sure it is removable but can't work out how. Releasing the clips at the front make it loose, but it still won't come out.

Her old 924 had a manual one that just lifted out but I'm damned if I can work this one out.