Created attachment 76299 [details]
Autofill tooltip on display 1 (lower right) when spreadsheet open on display 2

This bug applies to running a dual screen "extend the desktop" setup where the Calc window is on the secondary display (the one that doesn't show your Windows Taskbar unless you unlock it and drag it to the secondary screen).

(My specific hardware config at end of report)

Create a New or open an existing spreadsheet (XLS or native ODS, both work) and drag it to secondary display, either maximized or normal window produces the effect.

In any cell you like type for example "2rr15" (without quotes) and hit enter (or deselect cell) then reselect cell using mouse or cursor. Grab autofill handle at bottom right of cell with mouse/trackpad and drag downwards holding left (main) mouse button.

The tooltips (2rr16 and so on) that normally appear beside the cell now appear on the right edge of primary display at roughly equivalent height to the cell being autofilled (see GIMP-generated time-delay screen capture of primary display, attached)

Now move the spreadsheet to primary display and try autofill - it now behaves normally. Position the window straddling the two screens and it behaves normally for cells entirely within primary display and abnormally for cells whose handles are within secondary display.

Further, if I switch the secondary display position to the left of the primary, the tooltip appears on the left edge of the primary display. Adjusting the height of the secondary display in Screen Resolution Control Panel to match my physical screen positions, the tooltip height seems approximately to match the normal height according to the row of the cell I'm autofilling until I proceed below the height of my taskbar, upon which the tooltip remains above the taskbar (or if I move the taskbar to the secondary display it goes as low as the bottom of my primary display but no lower).

Once you know where to look it's manageable but it's clearly not how it should behave.

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HARDWARE CONFIGURATION and extended desktop setup:
Running HP Probook 6545b laptop plus HP S2331a monitor in "extend the display" mode over D-sub connector on Windows 7 (32-bit version, though hardware is capable of 64-bit)

Monitor (numbered display 2 from the hardware's perspective) is the primary display at native resolution = 1920 x 1080 pixels and is positioned to the left of the laptop with the bottom of each display aligned, according to Windows 7's Screen Resolution control panel (though I've since adjusted this to match the physical positions, laptop screen slightly below bottom of monitor and the effect is the same, just that the vertical position of the tooltip)

Laptop display is set as the secondary display (but is numbered display 1 from the hardware's perspective) when attached to the monitor at native 1366x768 resolution.