The Desktop could be corrupted, or, a corrupted monitor calibration file could have been created. 

To delete desktop and qcsetup.cnf files:

Depending on the version of your software, the desktop

(QC*.DAT files) and qcsetup.cnf files are located in :

In Colortools v3.X

  C:Program FilesDatacolorColortoolsTMPQC*.DAT

  C:Program FilesDatacolorColortoolsqcsetup.cnf

In Datacolor Tools v.1.X

  C:Documents and SettingsAll UsersApplication DataDatacolorToolsTools_AppUser_XXXQC*.DAT  where XXX is the name of your user

C:Documents and SettingsAll UsersApplication DataDatacolorToolsTools_Globalqcsetup.cnf

To delete the corrupted monitor calibration file, in Datacolor Tools, delete the following folder and sub-folders with Windows Explorer:

C:Documents and SettingsAll UsersApplication DataDatacolorENVISION

Note:

You can also try adding DatacolorTools.exe and Form Editor as an exception to DEP settings

If you need to uninstall TOOLS, use Add/Remove Program and then renamme the Datacolor folders.

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14. Walmart Process for Datacolor Tools 2.0
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16. How to change color tolerances?
17. Green tile test gives unstable results when TOOLS is connected to Microflash 45 IR (MF45 IR)
18. After starting Dtools,"GeneralDataSecurity Exception:Initialize Database failure Specified Database not found, Err1:-83 Err2:1, Vendor 1 08003, [Sybase][ODBC Driver] [Adaptive Server Anywhere] D
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20. Imported samples from QTX files cannot be stored into the database, possible error messages "Sybase ODBC error - - Column Sample ID in standard table cannot be null." or "[Sybase][ODBC
21. Strength methods in Datacolor Tools 2.x
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29. How to print forms in Tools?
30. Solving Common Problems with Datacolor Tools
31. UV calibration sometimes gives negative whiteness values.
32. How do I remove the gray background on the printout of reflectance plots in Datacolor Tools?
33. How to change Tolerance Limit?
34. How do I change the standard measurement of my instrument’s diagnostic tile?
35. Where can I locate Tools_Global and the .FRM files in Windows Vista?
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38. How do I save the current screen form so that it appears every time I start Datacolor Tools?
39. How do I download the latest Wal-Mart forms?
40. After measuring or retrieving a sample, I get errors "math domain, power overflow."
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42. AATCC UV Calibration Procedure
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44. How can I retrieve my samples I stored in the Match program, into Datacolor Tools?
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46. How to Change Measurement mode from Single to Average and make it a default setting?
47. Cleaning up DatacolorTools-Copying data from one folder to another and deleting folders
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51. How do I setup the green tile reading for optional?
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