what mouse are you using?
if you have a microsoft mouse with a 6.xx driver you need to delete that driver and install a version 5.5 driver
http://www.driverskit.com/freedownload/Keyboard_and_Mouse/Microsoft/IntelliPoint_5_5/18923.html
or switch to a logitech mouse.
make sure you are in the Design layer(s)
Use ctrl-A to select all objects
then zoom extents to see what is in the file
then go back and select an object using the Lasoo mode
what information do you get in the Object Information palette?
if it is on a sheet layer are they part of a Viewport?
Instead of using a VP for title block(s)
why not put the title block on a sheet layer at 1:1 scale
then you would be locking an object rather than a vp
given this task I would treat this object as a single polygon
to get the arcs you draw a large one first
then offset as required - once created clip the surface
when all done add surfaces
if you are using vw2008 designer
you can look for x-frog trees
these work but expect your file to be very large
and
-lines should be used sparingly
use objects to create elevations
use walls for trim
polygons with fills for walls use pattern if printing b/w (which both foreground and background same colour)
windows use polygon with gradient fills etc....
in the navigation palette
go to viewport section
double click on the viewports it will show the vp and on the sheet it resides
then change the class to None
we put all our VPs in None Class at creation
because None class is usually always on
or we can find it, if lost for whatever reason
some thoughts no specific solutions
check which version of Quicktime you are running
and then try using OpenGL rendering
since you have renderworks why would you not use Fast Renderworks?
and make sure all your VP's are set to None Class
that way it is not a class visibility problem
usually a VP only needs updating if there is a change to the design layer
if all things are set in the design layer you can use
Cache Viewport in the Document setting
another approach
in vw2008
you can assign a prefix to classes when you import an acad file
which will create a subclass so it it does not clutter the classes pull down menu
i.e windows-screws
windows-part
etc...
and in the RB create a folder in the symbols category
call it windows and move all the windows pieces to the new folder
which will unclutter our main RB window