Garbled text transfers

I am tying to transfer Tandy 102 .do (text files) with a Plugable Tech USB to Serial adapter cable, null modem, and HyperTerminal software to a Windows 7 laptop. The connection is working and I have two way communication, but the transferred data is garbled symbols, numerals, and graphics. I need some way to keep the text in standard ASCII text characters. Thank you.

This topic has been solved privately over email with Jerry however for anyone else with this issue:

I found a useful link that may contain useful information:!top…

Jerry found out that when “I slowed the transfer speed down to 300 baud and everything worked just fine, but slowly. I will increase speed up to the point of scrambling the text and then back down one step to ensure accurate transfers.”