Avast may be removing carrier-returns and characters when pasting text online

Hello,

I have Avast Free Antivirus on Windows 8.1, and use the Chrome web browser.

When I post text from a “.doc” Word Document (using Microsoft Word 2000), into an Answer posted to Yahoo Answers, some or most of the carrier-returns (paragraph breaks) get removed, together with some characters that had immediately followed those removed carrier-returns.

This does not seem to occur when I disable Avast.

When will this issue which appears to be with Avast, be resolved?

My System checks out as virus clear.
I have carried out the Avast boot-time scan with the offered additional-definitions installed.
Removing cookies, temp files, and temporary internet files, does not resolve the issue.

I hope to receive a solution.

Regards,

Robert333