A while ago (2012-2013) I had problems with BD blocking my wireless adapter from connecting to the internet (firewall module). As of now I have no problems anymore with BD besides that they take action by themselves on a file and such. I prefer 100% control over the actions since it is my data they could be potentially messing with. Set and forget can be a bigger problem than having to chose yourself. Even if that person was a novice.
Emsisoft has a big problem with VirtualBox. If you don't uninstall it completely, it BSOD your computer and then it doesn't boot. You'd have to go into safe mode (without networking, other wise it would crash to - probably because it might load up VirtualBox network drivers), and manually remove it and it's left over registry files. Even the registry itself was enough to make EAM or EIS freak out. Every AV has it's short comings. BD does it's job very well but is unfortunately bugged. I guess they are too focused on protection in signatures than fixing those bugs (signatures are extremely time consuming - and in my opinion, don't matter that much anymore - it's those zero day features that you'd want to have).
If you can fix your problem, I'd keep BD. If you can't within a short time, I'd move on to something else. You shouldn't have to put in time to fix a problem like this. The AV is suppose to prevent, not cause problems. Best of luck to you
@breathejustice and sorry for the rant. It's a habit I can't kick.