There's no limit on the number of characters you can save to a memo field other than what VFP imposes, which is unlikely to be the problem here.  What's the size of your data?  Also, what do you mean by "having a problem", do you get an error message?  You should make sure that you have the correct input before writing the data to your table.  It's possible that the problem occurs at an earlier stage.  Try using the LEN() function to send the size of your data to the browser.