Take a look at this thread: http://community.landesk.com/support/message/74125#74125
Also, check the patches available : http://community.landesk.com/support/docs/DOC-24787
There are issues involved.Also take a look at this ER : http://community.landesk.com/support/ideas/2717
Ultimately, it's well worth you logging your issues with LANDesk support on this. HII went through a major change and ideally you should have tested this before going into production. If you saved files during upgrade you should still have an option to roll back if needed.
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Definitely get a case logged and make sure we're aware of this. If you have drivers that are not installing that should be we need to know which ones they are and get that figured out. Any detection problems need to come to our attention or we can't fix them.
Definitely apply the hotpaches already listed because they have a lot of fixes in them already and they also improve logging dramatically, making troubleshooting problems a lot easier.