$self->{
            SERVERHASHLIST=> '%',
            SERVERLOCATION=> '%',
           };
[download]

This doesn't do what you think it might do (and I'm not even sure what you think its doing). Its actually doing a hash element lookup and then throwing the result away; ie it's actually equivalent to

$self->{ join($; ,'SERVERHASHLIST','%','SERVERLOCATION','%') };
[download]

Dave.