[WriteLog] CW breaking up

[Doc - W5TB]

I have writelog running on an old laptop p133 using the LPT port to send CW to my Ten Tec Omni VI+ -- the problem is the cw 'breaks up' (that is not all letters are sent completely) when sending messages with the F keys. If I type slowly all letters are OK via the keyboard.

I've changed baud rate and about every setting I can in writelog to no avail.

Anybody run into this sort of thing? Any clues?

Thanks in advance!

73  T.E. 'Doc' Drake,  W5TB
Arlington, Texas