driving man means two Windows "arranged" on his monitor so he can quickly drag and drop data from say, one spreadsheet to a Word document or vice versa. One way of doing this is to open two instances of Excel and "Restore Down" by clicking on the top right window button between minimize and close down. The resize the window to half or the available screen size. Similarly repeating with your other programme.
If you want to do this between two Excel spreadsheets it can be done within Excel. Open both spreadsheets and select Windows>Arrange and select an option. In Word it is similar select Window>Arrange All and you have one inactive and one passive window on your screen.
Also remember the very simple key shortcut Alt + Tab key which will quickly swap you between windows. Hold down the Alt key without releasing it and press the Tab key once to display other windows. Use the tab key again (Still holding the Alt key with your left thumb!) to select the window you want and release the keys when you have the one you want. A quick Alt + Tab (& release keys) switches you to the last window you were using.
If you want to put two windows of any kind on screen, sharing equal space, make sure they are the only windows on screen at all (everything else minimised), right click taskbar, select Arrange Windows Horizontally/Vertically. Similar to Taff's method but the sizing is done for you
I think you mean acer gridvista? Look for it in start>all programs>acer (i think) or acer gridvista and run that. If you can't find it let us know what laptop model it is and we can try and find a download link for it.