Attached is a little program that I put together to receive, decode and display data from a GPS receiver. I found some sample code out on the NI Web for this that I modified to get this version. I deleted the functions to show me satellite positions and such, and got it down to the bare bones to display location, time, and such.
I have this VI working with the Pharos GPS-500 receiver (http://www.pharosgps.com/products/proddetail.asp?prod=006%5FPB010%5F1%2E00&cat=141).
I downloaded the USB-to-Serial driver also from Pharos at http://www.pharosgps.com/support/downloads/list_subcategory.asp?TYPE_ID=2&SUBTYPE_ID=35.
My time conversion process is not the best, but it works for my applications.
Have some fun with it.
Will G>