Menus closing

Love the Parallels product - best virtualization tech I've used to date. That said, menus and drop down disappear when I try to click on them (e.g. drop down menu in a web form, or a menu buttons in apps). I have found that holding down and dragging keeps menus in the forefront, but simply clicking... no dice.

OSX 10.9.5 / W8.1 guest.

EDIT: Coherence mode

 

Hi Dudeinco,
You May need to manually (Re)install Parallels Tools on Windows 8.1 as suggested at http://kb.parallels.com/112609 Restart Windows once installation is completed and let me know how does it work.

 

If possible, make a screen recording (http://kb.parallels.com/en/118652) which would show the issue.