Problem with Ozone 6 in Standalone mode

Hi, hoping someone might be able to help. I have Ozone 6 which worked fine as a plugin and as a standalone on my old computer (even though it did chew up the CPU!). I recently upgraded my computer to an Intel i7-4790 and now Ozone 6 continues to work fine as a plugin but it wont work as a standalone. Every time I try and load it it will try and load for a few seconds and then it will crash the entire computer (sometimes showing the blue screen of death!). I can’t understand why it would work perfectly as a plugin and not as a standalone.
The video card is up to date.

Intel7 Core i7-4790 CPU @3.60 GHz, 8 GB Ram, 64 bit, Windows 7 Professional
Fireface UCX

Upgrading to oZone 6.1 caused the standalone version to crash on my computer. I reverted to 6.01b which works fine.