Auto updates of textbox
 

I am rather new to VB and having a problemm getting a texbox on a userform
to update automatically from a DDERequest. I have a DDE Server which is
getting measurements over the COM1. I can get the textbox to update only
when I click something. I would like it to monitor the signal in real time.

I can put the following (=SIPART|'DR24'!SAA6) in an Excel cell and it will
monitor the signal in real time, but I cannot get this to update in the
textbox.

I am guessing this is rather simple. Any suggestions?

Thanks.

Tom