Missing characters in VM

[e.vahdat]

Hi all

I'm using Composite_Duck_4cap.hex and Ubuntu 14.04 on VMWare 11.

Sample payload is :

DELAY 500
STRING if [ -e /media/$USER/TOOLS ];
ENTER
STRING then
ENTER
STRING    myd="/media/$USER/TOOLS"
ENTER
STRING fi

When i fire it up in linux some charachters are missing. and it types :

if [ - /mdiaSER/TOOLS ];
ten
   md="edia/$US/TOS"
fi

I searched forum and found some posts but they are not helpfull

like this :

https://forums.hak5.org/index.php?/topic/25033-question-slow-down-keystrokes/

It says that you must use STRING_DELAY to solve the problem for delay between keystroke.

But i could not find any version of encoder that has STRING_DELAY command.

So any help ?