Unfortunatly for me, I beleive that ASUS boards passed better QA than my software had, so I guess the fault is mine. Perhaps this has to do with multi-processor environmant that was not that popular on XP platforms. I'll have to see if there's a way to force SPP to run on a single processor.

EDIT:

This is how you run SPP on a single CPU. Please let me know if that solves it. If so, I will publish the this batch file as a reasonable workaround.

Just Create a CMD file enywhere you like (e.g. runspp.cmd on the desktop) and type the following two lines into it:

cd "C:\Program Files\SmartPropoplus"
start /affinity 1 Sppconsole.exe

Note that it is assumed that SppConsole.exe resides in folder C:\Program Files\SmartPropoplus - if not, fix it.

I'd like those of you who still have this problem to help me pin-point the cause.

I've compiled a version of SppConsole that does not insist on uniqueness. If my assumptions are right then you will be able to use SSP now. Just please let me know if that solved your problem.

You will have to replace file sppconsole.exe with the one zipped here. This is simply done by going to the SPP folder on your machine (usually C:\Program Files\SmartPropoPlus) and rename the existing file sppconsole.exe to sppconsole_3310.exe. Then open the downloaded zip file to the SPP folder.

Now try SPP.