I had some issues with two of my laptops getting the HTC Sync and DNA drivers working.
I had to set them to 'Compatibility mode' (right click sync icon, properties, run compatable win7 which simulates 32 bit)
I was able to install and run with no problems on my 32bit desktop so I suspect it was the 64bit installation.
It all works on all three now.. maybe it's my setup but if someone has some problems and have 64 bit win7/8 try this.
I had to set them to 'Compatibility mode' (right click sync icon, properties, run compatable win7 which simulates 32 bit)
I was able to install and run with no problems on my 32bit desktop so I suspect it was the 64bit installation.
It all works on all three now.. maybe it's my setup but if someone has some problems and have 64 bit win7/8 try this.