You can try SET MEMOWIDTH
or,
in the valid event of the edit box, call a custom form method that takes the value of the editbox, removes all chr(13) from the string, then place new chr(13) characters at specified intervals in the string so the memo will be exactly N number of characters wide. To do this you will need to study the chr() ,strtran(), and rat() functions.
HTH
Eric Kleeman - EDS Consulting Services
MCP Visual FoxPro
MCSD C#.NET
Hua Hin Thailand
Los Angeles California