MSSQL Network Error IOException Invalid argument

I just purchased this app today and cannot connect to any MSSQL instances. SQL2005, SQL2008, SQL2008R2. I have tried the name and IP addresses, SQL as accounts and Windows accounts. The only thing I can connect to is the demo connection that comes with the app. Would be nice to be able to see the connection properties.

So, if this thing doesn't work do I get my money back?!
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