Resolve 15: Audio in timeline plays only first 9 seconds

Hello,
Audio in preview plays fine, but in timeline I lose it after the first 9 seconds. It plays only the first 9 seconds and then disappears. These are 1080p QuickTime files from a Canon 70D camera.
Upon installation of DaVinci, the program inspected my PC and said it's fine but I will not be able to do good 4K work. Video plays fine but audio plays fine only in preview view.
Here is my PC setup:
OS: Windows 7 64 bit
Physical Memory: 6GB
CPU: Intel i7 950 @ 3.07Ghz, 4 Cores
Video: GeForce GTX 460, 1GB RAM
Audio: Realtek HD Audio and nVidia HD Audio
Thanks.
Audio in preview plays fine, but in timeline I lose it after the first 9 seconds. It plays only the first 9 seconds and then disappears. These are 1080p QuickTime files from a Canon 70D camera.
Upon installation of DaVinci, the program inspected my PC and said it's fine but I will not be able to do good 4K work. Video plays fine but audio plays fine only in preview view.
Here is my PC setup:
OS: Windows 7 64 bit
Physical Memory: 6GB
CPU: Intel i7 950 @ 3.07Ghz, 4 Cores
Video: GeForce GTX 460, 1GB RAM
Audio: Realtek HD Audio and nVidia HD Audio
Thanks.