I USE the FOLLOWING method to tile windows side by side in Windows XP but I have come across a problem which I am outlining at the bottom of this message.

Method used:       1. Firefox and a Word document are shown on my taskbar .
                             2. I hold down the Ctrl key and left click on one of the buttons.
                             3. WITHOUT releasing the Ctrl key, I left click on the other button.
                             4. After releasing the Ctrl key, I right-click on an empty area in the
                                 taskbar.
                             5. From the menu, I select TILE VERTICALLY

The problem:-   How to reduce the size of the PAGE which shows the Firefox site?
                         I have managed to reduce the size of the Word document page but
                         why not the other page, that is, the one on the right side of the
                          screen?

Many thks to all who have the kindness to reply.Whichever window you want to re-sizw open it and make TI the size you want...
Then close that window and windows will do it automatically the next time