Redux: Screen Updates - OS X vs Win XP

[Stephen Wonfor]

I have been working on a client solution deployed in FMP 8.0.n on  
Server 8 with XP clients.  We have a computer booking db where we  
have wait lists and assignment to specific computers.  We track user  
time as different machines have different time limits.  We log in  
users either via name or from bar code scans.
The question.
We set up a little looping script that simply pauses for 1 second  
then drops the cursor into the scanID field - we have EventScript  
plugin attached to that field so the barcode scan will execute a  
script when a barcode is detected.  We have the current time in a  
field onscreen. When I run this script from my Mac the time field  
updates after each script pass - this does not, however, occur on the  
XP machines.  Too bad  - with a repeating container field holding 720  
different clocks we could have a "realtime" clock...
Is this to be expected?  The time field is an unstored calc on Get 
(currenttime).  Adding a screen refresh for the Windows users is  
hideous wrt interface...

Stephen