Internal Error while Opening Drawing

[Anonymous]

Hello,

I'm stumped by this problem! I'm opening one particular drawing and it gives me the following error:

"INTERNAL ERROR: !dbblkref.cpp@2275: eWrongDatabase"

Has anyone seen this or have any idea what could cause it? My openDwgFile function works fine on other drawings, and this particular drawing opens just fine if I just double click it, but I want to open it with my code.

Thanks so much for any help!

-Carlos

PS: Running AutoCAD 2006