Ahhh... OK, my bad. Never knew the different video modes in VPX existed. I just did a default install.
I can understand the timing issue problems with the different number of PC monitors, type of TV monitors (Mine has a gaming mode), OS type,
mobo type, GPU type and GPU driver type, etc, etc......
I typically way over-spec my PCs for the tasks at hand, which tend to minimize a lot of problems, albeit making it more expensive than it has to be. I learned this over 30 years of gaming.
Doing a knowledge search this AM for my own edification. This was discussed back in the middle of 2016.
http://www.vpforums.org/index.php?showtopic=34672&hl=focus&page=4
Thanks!
Harry