The gl_info.txt contains information about the Graphic cards and driver. It is located in the DraftSight_temp folder. The path to find it is:         

For Windows 7 and Vista: C:\\Users\\%username%\\AppData\\Local\\Temp\\DraftSight_temp\\gl_info.txt

Shortcut: Start menu > type in %temp% and hit Enter.

For Windows XP: C:\\Documents and Settings\\%username%\\Local Settings\\Temp\\DraftSight_temp\\gl_info.txt

Shortcut: Start menu > Run > type in %temp% and hit Enter.

Note that the AppData and Local Settings folders are hidden by default, if you don't see type the entire path.