Yes. If you are playing the unactivated version of Sudoku Up, each game has only one predefined and unchangeable game number (shuffle) to play.
If you activate your copy of Sudoku Up 2008, each game will have
thousands of possible games to play.
To activate your copy of Sudoku Up 2008, please open the "Help" menu, "Activation Code" dialog box.
In the default installation, Sudoku Up sets up separate
statistics and configuration data for each Windows XP
user/account.
You can configure Sudoku Up to have single configuration
and statistics data for all users/accounts.
Install Sudoku Up in a folder accessible for all the
users. For example: the default installation folder
C:\Program Files\Sudoku Up.
Open Sudoku Up, Tools menu, Options command. Click the
"Advanced" button, "Store Folder" tab, click "Other
Folder", "Browse" and point to a common folder where all
the accounts have read and write privileges.
For example in Windows XP: C:\Documents and settings\All
Users\Shared Documents\Sudoku Up (you have to create the
sub-folder "Sudoku Up"); or C:\MyData\Sudoku Up
For example in Windows Vista: C:\Users\Public\Public
Documents\Sudoku Up (you have to create the sub-folder
"Sudoku Up"); or C:\MyData\Sudoku Up
Press OK to confirm.