Not sure, it's only for half the effects and I noticed it a while ago and stopped using vegas because of it.
1920x1080, i've tried changing the resolution but no help.
I'm having an issue where certain fx's options aren't displaying correctly. It looks like this https://i.imgur.com/RdupDJ4.jpg
I haven't been able to find a solution online, only found one other person with this problem. We both use windows 8.1.