Ok, at this moment I'm not at the office, but I will tell you how to reproduce it:
1. Create a job with multiple tasks;
2. Expand the job, so you can see all the tasks inside;
3. Select a task (NOT the firts in the job);
4. Right click on the job title to popup the context menu;
5. The context menu doesn't contains Run Job, but contains Run Task;
6. At this moment the 1st task is automaticly selected;
7. Close the context menu by clicking somewhere else;
8. Right click the job again to get the context menu popup again;
9. Now automaticly the job is selected;
10. Now the context menu shows Run job, that's what I wanted in step 6 to happen.
So right clicking on a job (when expanded) has two different context menu's. It looks to mee that it must be the one at step 10 at all times.
Later this day I'm at the office so I can check this again.
Uses Visualcron since 2006.