Has it ever worked for you? Maybe the calculator program is not on your computer. Go to Start -> Find -> Files or folders. In the "Named" field type "calc.exe" (without qoutes) and see if it pulls up anything.
Re: calculator: ok its in C:Windows
Re: calculator: ok its in C:Windows
Delete it and paste it back there:
Go to View -> Toolbars -> Customize
While this window is up, Right click on the Calculator icon on the toolbar and select Delete.
In the Customize window, click on the Commands tab.
Under Categories, select Tools.
Under Commands, scroll down and find "Custom".
Hold down the mouse button and drag the Custom button back up to the toolbar, where the calculator icon that you deleted used to be.
Try it now. HTH