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From: michael bode <m.g.bode@web.de>
Newsgroups: comp.lang.ada
Subject: Re: Strange behaviour of delay in Windows XP
Date: Fri, 08 Oct 2010 12:13:49 +0200
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Jeffrey Carter schrieb:

> delay until T1 + D;
> 
> and see if that makes a difference.

Doesn't make any difference.

So far this all happens only on 2 Vostro 220/XP Machines with no CPU
load. Other XP machines or even another Vostro 220 with Win7 work nice.
I suspect a special combination of OS, BIOS and CPU to be the culprit.

...

Bingo. A BIOS update did the trick.