William, thanks for the reply.

It was my mystake quoting: "...differently than in the View mode ". it should be : "...differently than in the Edit mode ".

I set the cache time to a non-zero value, as you suggested - still not good.

I can tell you that in the View mode, while debugging - I can see that the page_load event (of the control) is not being fired. It is more or less what you described, but still... nothing seems to.

Here are rest of details:
For the Edit Control:
1. EditCLIDGroup.ascx
2. Both Edit and View ("View" label is not mentioned as control title in the module definitions page - it is empty) are registered for the "DesktopModules/CLIDGroup/EditCLIDGroup.ascx"
3. It should be used as view and edit purposes.

3. View

Setting the module instance's Cache Time to 0 should have had the same effect as setting it to -1. Perhaps the change did not take effect until the browser cache was cleared or the DNN application was restarted. Setting the Cache Time to -1 in the module's definition (not in the module settings) does cause the Cache Time of any new instances of the module that are added to the page to "hide" the Cache Time setting from the administrative user so that it cannot be accidentally set to a non-zero value.