Do you have problem with any of the commercial software? Do not hesitate to take contact at the email address on this page. Don't forget to write the name of the software, which version and which operating system you used. Try to explain how the error occurred and if it happens every time in the same situation.
Try to always use the latest version of the software. Unfortunately I don't always have time to respond back to support errands, but I read them carefully and are working to resolve them.
For anything else please take a look under contact.