Was this grade fair?

So in French we had to make a PowerPoint with pictures of various rooms of our "dream house." Then we had to describe those rooms in two or more sentences each. There also had to be a brochure with it. My school uses this sucky program called vdesktop. Basically an online desktop that we have to use for any school work, that way we can access it from any computer. It glitches a lot. When I went to save my brochure and PowerPoint, it refused to save, then deleted the whole thing. BOTH. I explained that to my teacher and I was able to receive the PowerPoint but not the brochure and had to do that part over. So she said no late penalty (which is 10% per day late) and I would just present next class. Next class I was ready to present and emailed her the PowerPoint. TWICE. But for some reason the email wouldn't go through. The email finally came through AFTER class and she said "okay, I see you sent it, just do it next time" again. SHE STILL GAVE ME THE LATE PENALTY EVEN THOUGH IT WASN'T MY FAULT. Like I control when the stupid vdesktop email works? So I got a 78%. And in the comments she also said, "do not simply read your presentation." Even though that's exactly what she said to do. "DESCRIBE THE ROOM IN TWO OR MORE SENTENCES." Which means: I HAVE TO READ THE SENTENCES I WROTE DOWN. What more could she need? Was my 78% fair? Even though I can't control the school's crappy system works and when the teacher apparently didn't understand he own directions?