I've never seen that and I know that it has nothing to do with graphics cards or anything, as clicking that + only shows the technical(i.e. numbers and text documenting about the object in 3d space) info. Also, are you running BrawlBox as an administrator? Because when I initially used BrawlBox, it did weird errors like that to me, and then I changed it to running as administrator, and it worked completely fine.
I tried running as an administrator and it had the same result. Is there a driver I can install or need, so I can view models, and possibly edit them? I have been told that my PC may be missing when my brother gave it to me, but I didn't expect something this stupid to happen. If I can just edit hacks on here without any errors or just look at them for screenshots, the waiting would be worth it...
I'll just assume that Dell PC's can't use brawl hacks, but I am still gonna look for a way to fix it.