SDKInstanceManager OpenDatabase always returns false and has no error messages

SOLVED

Hi, 

I'm trying to work through the C# sample project in the Sage 50 Accounting SDK (Simply) but for some reason I can't get the opendatabase connection to let me access the database. I have set up my user in the Sage app and I know my username and password is correct because the VB,Net sample works. But for some reason the C# opendatabase function always returns false and I can't figure out why. Theres no error message either to help figure out my issue.

Any help would be greatly appreciated!