Error: "Act! has stopped working" when clicking the e-mail address or e-mail button on a contact record

Symptom: Error: "Act! has stopped working" when clicking the e-mail address or e-mail button on a contact record

Product Details: 
Product Family: Act!
Product: Act! Pro, Act! Premium
Version: 20

Environment:
OS: Microsoft Windows 7

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Cause: This can be due to Act! running in Compatibility mode.

Solution:

Follow the steps below to check Compatibility mode:

1. Ensure Act! is closed
   
2. Right click the Act! icon on your Desktop and select Properties
   
3. Click the Compatibility tab
   
4. Ensure the Compatibility mode is set to Windows 7
   
5. Click Apply, then OK
   
6. Launch Act! to test