Hey rwilabee! The 3 flash lights, I assume they are red, means it's searching for satelites, This takes time. Just let it set there until it does get a good lock. This can takes some time. Mine sometimes, especially after I move to a new location or a rebuild, can take up to 1-2 minutes the first time.
I always start mine in manual mode, wait for the red light to go out and start flashing whatever mode color I'm in, then select my flight mode, usually gps.
If if doesn't lock onto the satelites, try movong the acft over to someplace else. Signal deflection could be interfering with it not locking.
Always wait until you do get a lock before taking off. Otherwise it will lock somewhere in the air, not a good thing, especially when you have to hit the rth switch! Also, make sure you understand how to bail out of rth in case something goes wrong. Easy enough to do. Just flip the rth switch off then flip the switch for for flight mode into another mode. You can immediately flip back into your prefered mode. WKM just needs to see a different mode selection to disengage.
We need some more of your vids, dude!