The issue can be caused by invalid or missing file associations for PDF files. It can also occur if you are using Adobe Reader X with Use default viewer for .pdf files selected in the GenVision Options dialog.
To resolve this issue, follow these steps:
1. Verify that Adobe Reader has been installed.
2. Open GenVision.
3. Select VIEW > Options.
4. In the dialog, check View output as PDF. Directly under that checkbox, choose Use this program to view output.
5. Click the associated Browse button, and navigate to the Adobe Reader application or to the Adobe Reader desktop shortcut. Click Open.
6. Uncheck View output as PostScript.
7. Click OK.
If you continue receiving the same error messages after performing these steps, we recommend installing a different PDF program, such as Sumatra PDF.