[Dave Scheck]

After deploying the code, are you power cycling the cRIO? If you don't have code on there, deploy, then don't turn it off then back on, the DS will show no code.

If you are, then you'll want to watch the console as the cRIO comes up to see if there's an error that is causing the program to not load properly. For example, if you're accessing memory during initialization that hasn't been allocated your program will crash and it will look like there isn't code running (which technically there isn't because it crashed). If your code has an error like this, you will see a whole bunch of stuff spew onto the console that will point you in the right direction.