Need assistance with recover .dwg file.?

This morning I tried to open an Autocad 2006 dwg file and I got a message saying that there was a problem with my file and that I had to try to recover it using the RECOVER command.

When I did this, I got the following message: “Reading Handle 171763 Object type AcDbHatch. Error 13 (eUnknown handle) object discarded”.

10 seconds later Autocad crashes!

I noticed that the error had something to do with hatches so I tried to open my file partially leaving out my hatch layers. The problem is that when I try to open my file partially Autocad opens a new blank drawing and does not even open the window where I can choose my layers. Does anybody know of a way to recover my file or is it lost forever?