originally I installed the driver from the CD that the decklink came with. I was having issues with sound and picture. When It would drop frames it would make a crunching sound, and it would flash back/green frames on the monitor.
I talked to another editor who was having a similar problem and he said it started when he upgraded to the latest Decklink software. I have unintalled the driver and went back to and earlier version and it has seemed to fix this issue. ( I have also contacted decklink and they are aware of this issue)
I was hoping that it would resolve the dropped frame issue as well, but this seems to be a separate issue.
Betsy