When you move the mouse pointer over the taskbar icons on a Microsoft Windows XP-based computer, some tooltips are hidden behind the taskbar.
This issue may occur if you right-click and then open a file from a submenu in the Start menu. For example, this issue may occur when you click Start, point to My Documents or My Recent Documents, right-click a document, and then click Open.
To resolve this issue, use one of the following methods:
Log off and then log back on to the current account.