Elektor EPROM Emulator flaky

From: Jack (jchirac33_at_hotmail.com)
Date: 09/16/04 

Date: 16 Sep 2004 05:37:49 -0700

I constructed the EPROM Emulator published in Elektor magazine in the
SEPTEMBER 1992 issue. It worked quite well under Win98, but lately I
started using it on a HP Compaq nx9010 Pentium 4 laptop using WinXP,
and am getting inconsistent results. The downloading of code into the
target works successfully 1 out of 10 attempts. When the download
fails, the download LED flickers on and off. When the download was
successful, the LED stayed on continuously.

Any ideas? I tried changing the parallel port mode on the laptop to
Output Only, Bidirectional, EPP and ECP but no change.

Thanks

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