[OpendTect_Users] Scale

[Gery .]

Dear Users,

Since a while I've been using the ruler tool in order
 to asign to my screenshots vertical and horizontal scales (just 
approximations), however, sometimes this tool works and sometimes it 
doesn't. I was wondering if this is a bug or if it is my Pc, someone 
else has faced the same issue? I have the OD v4.2.0a installed in both 
Win7 64-bits and Rhel 5.5 64-bits. This problem occurs in both systems. 
Also, could it be possible to add a "scale tool" for both the vertical 
and horizontal directions, I mean, to get exact distances for 
screenshots? could it be possible to add this to the next OD release?

Thanks in advance,

Gery