Scheduler style problem in Chrome

Click on any menu item at the top of the page.
The menu stays the same height until you click on “Events”. It doubles in height if using Chrome, but works fine in I.E.

PS: I you refresh the page, the menu will return to its normal height.

As a follow-up, others have been testing this out. All parties have reported problems, but each is different. Example: one person did not notice the problem in Chrome or Firefox, but did notice a new problem with I.E.8