SmartUI Windows 7 compatibility

SmartUI Windows 7 compatibility

One of the applications I am maintaining was written using Visual Studio 2005 and as such is a .Nst 2.0 application. It is using Xceed SmartUI 3.3.3031 to place a SmartCheckedListBox on a form.

One of our users who has been upgraded to Windows 7 is no longer able to select the checkboxes on this form. They actually do not even appear. They can select an individual item, but more than one is no longer available.

 Is there a configuration issue, application or system setting, or bug involved in this? Is it simply a matter of that version not being compatible with windows 7 and we need to purchase an upgrade?

 Thanks,
Adam