Hi all, It appears that my problem was just a newbie mistake after all.
Near the end of last week (Thursday or Friday, it must have been), I decided to try out Hyper-V on my machine, just to see what it could do. I didn't end up doing anything with it, but I didn't get rid of it, either. I never drew the connection until today, when I decided to try running my LilyDev installation on Hyper-V instead of VirtualBox as a last resort. It was pretty slow, but make passed without errors. Then I finally realized that two VM systems on the same machine might not actually play well with each other! *facepalm* I uninstalled Hyper-V (and WSL, which has been sitting unused on my computer for a few months) and uninstalled/reinstalled VirtualBox. Sure enough, everything works perfectly again. Thomas, Jean, Michael, and Jonas, I'm sorry to have wasted your time like this. I appreciate how willing you've been to help me out, though, and I hope you all have a great rest of your summer (or winter for those in the Southern Hemisphere). Thanks for everything, --Owen On Wed, Jul 1, 2020 at 1:18 PM Owen Lamb <owendl...@gmail.com> wrote: > Sure thing--it's coming your way! > > On Wed, Jul 1, 2020 at 1:01 PM Michael Käppler <xmichae...@web.de> wrote: > >> Am 01.07.2020 um 21:15 schrieb Owen Lamb: >> > Hi Michael, >> > >> > 1. I've been using VBox version 6.1.8, one version behind the latest. >> > Today I updated to 6.1.10, but the problem persists. >> Can you please send me the output of 'VBoxManage showvminfo >> NAMEOFYOURVM' privately, too? >> >> Cheers, >> Michael >> >