Alright so a small update in regards to my pc issues. I have a tech-savvy friend who's willing to take a look at it this weekend and hopefully he'll manage to figure out what's wrong (and maybe fix it if it's just a software issue). I hope worst case scenario is just an issue with the power supply unit because anything beyond that I don't think I'll be able to fix quickly. So for now the release of the preview build is still postponed until I've got news on the PC situation, and hopefully I'll know more by sunday.