Vegas 12 wont render more than 15 secs of footage

When i render what happens is it starts off fine then slows down till it eventually doesnt do anything and then stop responding. Ive tried everything, vegas 10,11,12,13 all have the same issue but when i try using adobe its fine. If you're wondering why i dont using adobe in the first place its because i find vegas easier

PC Specs:
- AMD FX 8320
- ASUS Direct CU II OC GTX 780
- Corsair CX 750M PSU
- 8GB Ram
- Gigabyte 970A-DS3P

Things i have tried:
Turn off GPU Acceleration
Update the program
Update windows
Reformat my ssd

It just stops? Any errors.

Render settings?

 

Internet 1080p HD

and yeah it just stops