Bpolky:
I am sorry to hear that you are having problems with PD11 crashing. I took a quick look at your dxdiag file, and, with the exception of the age of your video cards' drivers, your computer should work fine with PD11. Dafydd has given you excellent advice. It sounds like PERHAPS your QuickTime version is corrupt or not the latest version. PD11 is very dependent on QT.
I am running dual nvidia 580 GTX video cards in SLI without any problems at all.
You won't get much support from the members of this forum with your "Do Not Buy" advice. The forum is full of folks, like me, just regular users, who have been using PD for many versions with great success. They have all given of their time and expertise to help new, and experienced, users to improve their video editing skills and to help users having initial problems, determine what the problem is, and then fix it, and get PD working for them.
If you don't want to do as Dafydd has suggested, then by all means, request a refund and find another product more to your liking. As for myself, I am completely satisfied with PD11, and was with PD9 and PD10. Yes, there are the occasional bugs and glitches, but I know of no software that is consistently free of bugs.
Cyberlink Tech Support could be improved, based on the comments that I have read from time to time here on this forum, but the folks here will help you out if you want to follow their advice.
Have a great day, and I hope that you find a product that works to your satisfaction.
Regards,
-Phil
Windows 10 Pro x64
Dell XPS 8930
Intel CoreT i7 (4.6 GHz)
32 GB DDR4-2666 RAM
1 TB PCIe -x4 SSD
NVIDIA GeForce RTX 2060
PD14 Ultimate x64, 4207
CD4 Ultra and AD6 Ultra
Bleeping Computer Malware Response Instructor