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.

Does your audio play in the Color tab?

Your machine is really not up to 4K, even HD would be a challenge. Not only is 1 GB VRAM insufficient, but even CPU RAM is quite short at 6 GB. And, finally, Resolve is not supported on Windows 7 anyway.

Thanks Uli for your response.
No, unfortunately the same problem (audio plays only first 9 seconds of clip) occurs in the Color tab.

I Know my PC's specs are way down there, but Resolve accepted them upon installation. Also, it's funny that I have audio in preview (which to me means the hardware handles the audio) but is cut off in timeline.
Thanks again.

Can you put up an offending clip for download?