no pop up for top and base constraints in revit 2017

[Rrbryce362017]

I installed Revit 2017 on my Microsoft Surface Pro 4 and it seems to work well except then I click on the base constraint or top constraint in the Properties dialogue box, the options for those constraints don't show up as they used to with a pop up box which gives me the options to constrain (a wall for example) to the various existing levels.
I can highlight the base constraint or top constraint in the properties dialogue box and using the up or down button, toggle through the various levels but I prefer the pop up that used to show up. can anyone suggest something or does the pop up no longer appear in 2017?

thanks in advance.

bob

[digihumminbird]

Bob, I'm going to try moving your post over to the hardware forum where the tech heads can stew on it, hopefully. I have a hinky feeling this is related to hardware itself, and probably the graphics card. Hopefully, our collective knowledge can help you out.
Cheers,
LC