In-game vanishing road problems (Test Drive Unlimited 2)

Well guys, the story is. Recently bought a HP envy dv7 laptop (windows 8). The game just flies on it. So I played TDU2 on a McLaren 300 km / h road is straight and bam the road disappears and I fall through. Then I recover and disappear down again. I tried to turn on the map to move to another place, but it did not work. I stupidly tried to call the map or menu for 15 minutes, but as it did not work, I had to go to Alt + F4. Then I had to start from the beginning. I updated the driver to the latest version right away.

Thanks in advance!!