So…I use a Surface RT a lot of the time. Your website doesn’t work well with this device, or my Windows Phone.
The problem is caused by the behavior of your drop-down menus. The drop down list should stay visible when you click the menu item. Since they don’t I can’t use them. They disappear before I can click on a submenu.
If I go up to the top menu bar: Technologies > Applications > Support etc.
Under it is another menu: Home > Community > Forum > etc:
Community > and Company > I can go through all menu items and sub items without issues. Nothing under the menu choices to ‘steal’ focus from the mouse.
If I remain on the top menu and move left to Support > and then mouse down the menu choices disappear as the cursor crosses over the white separator. (GHI Website menus > ‘steals’ the focus from the mouse and the menu goes away) Same thing with all top menu items left of Support (Home > Community > Forum > Suggestions > GHI Website menus > ) can ‘steal’ focus.
Somewhat influenced by how fast you move the mouse.