George
Welcome to the forum.
I'll try not to repeat info others suggested.
'Yes' generally Opus is a very well-behaved program. The context menu has not been a problem for me.
If you are running on Vista, you can avoid some 'little' issues by turning off Aero. Also, when you install Opus on Vista I suggest:
* the logged on user have administrator type (during the install process you can check the box for use by all users)
* disconnect from the internet and turn off AV protection (temporarily for install)
* when initiating install, Right-click and launch as 'run as administrator'
* shutdown and reboot should not be necessary, but I suggest the extra step as a good practice
* another step that may not be necessary, but I have done... is find the opus.exe file and change Properties under 'compatibility tab' to "run as administrator"
The above may not solve your problem, but can remove some doubt. Once installed, any User type can run Opus (I have to type a password for admin, then proceed).
Whether Vista or WinXP, you may try using Opus without wireless mouse and keyboard to see if those are a factor. My USB/wireless mouse is very sensitive to its mouse pad.
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"initially hidden" should not affect an object's visibility in the editor. (if you are stacking objects, then 'layers' in the editor may help. An alternative is to place an object off page, and use actions or script to move it into place at runtime (e.g. Preshow trigger). You can also put multiple objects in Frames, and hide/show frames. When you get to it, check out multi-frame object (nice for sequencing thru 'stacked' objects).
"conceal in editor" will not change visibility at runtime.
Hint: Customize your toolbars to add the icons for some of these controls.
Quote:
building a publication. As it grew bigger, the right click (context) menu of the interface started vanishing with no obvious reason
First, try creating a new pub or editing a sample pub... to see if the Rt-Clk context menu is a problem there. If it is just your one 'large' pub, check to make sure you do not have two objects (on one page??) with the same name. Avoid other "conflicts"... such as naming a variable and an object with same name. Try not using MasterPages temporarily (easy to test this on a copy of the pub)... again to find conflicts.
Check for 'resource conflicts' (selection under Publication menu)
hope that helps.
Another hint: If you get into scripts or need to type in a reference to an Object... OpusScript does not like 'blanks' or 'parens )(' in names. So an object like Frame (12) --- will need to be typed Frame__12_