Having trouble with livery editor on PC

Good afternoon guys, wonder if some of yous could give me a little helping hand here. I am away with work quite sometimes and I have downloaded FM7 on the laptop for really the soul purpose of liverys. I have found it easier to just edit stuff as I can use a mouse and keyboard quite easily. Now when I tried to save a livery, it keeps coming up with the file failed to save please try your save again. I have no idea why I have tried like 100times and ive sat for like an hour just making one logo for this to happen. so is there anyone that uses pc for editor and have had this problem? Thanks.