What's the use of multiselect in the joblist? First of all, it's a strange grid, where you can select cells?? But moreover, you can multiselect but it doesn't do anything useful. You'd expect to be able to delete all selected jobs, but it only deletes the first selected one.
Please look into this window. It's pretty bad. Make it a listview, and make sure multiselect is useful for something.
Of and make sure the Del key (on the keyboard) works.
Tested with r8882 on Windows XP.