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1. I had problems downloading Sudoku Up. Now when I run it, the following errors messages are displayed: "not a valid file ..." OR "error reading ..."

2. While playing, the program freezes or reboots (sometimes preceded by an error message).

1. I had problems downloading Sudoku Up. Now when I run it, the following errors messages are displayed: "not a valid file ..." OR "error reading ..."

There was an error during the download process.

Please redownload Sudoku Up by clicking here: www.sudokuup.com/download.htm

To obtain a copy of a prior version of Sudoku Up, please click here.

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2. While playing, the program freezes or reboots (sometimes preceded by an error message).

Note: this is not a Sudoku Up specific error, but is related to the software/hardware configuration.
If Sudoku Up freezes, other games/programs with the same configuration will freeze.

To solve the problem:

1) First, restart your P.C. Errors are sometimes caused by a temporary conflict with drivers or programs.

2) Some opened applications can create the problem. Please close all open programs, then run Sudoku Up.

3) The problem can be related to the Video Card drivers. You can check the web page of your Video Card manufacturer for updated drivers. To see the Video card you are using, open Start, Settings, Control Panel, Display,Settings tab, Advanced button, Adapter tab.

4) Some advanced video cards can create problems. Click on Start, Settings, Control Panel, Display, Settings tab, Advanced button, Troubleshooting tab. Decrease the hardware acceleration to correct possible problems. Try all positions from "Full" to "None".

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