I seem to recall the same problem and it was a case of it being stuck....  


On Wed, 14 Jun 2000, Matthew Orgass wrote:

> 
>   I just got a Personal DECstation off of ebay and can't seem to get the
> case open.  I took off the two screws at the top in the back and one near
> the power switch.  Is there something else that needs to be done, or is it
> just exceptionally stuck? 
> 
> Matthew Orgass
> darkstar@pgh.net
>