David,
RS232 is a serial port. Phil is correct in that there is not enough current to run the system from any rs232 port either old or new. As far as logic signal levels the LedTriks is strickly a lpt setup it does not use a rs232 port at all. It is the lpt port that we are concerned about the signal voltage on. You should not have an issue on any lpt port if using the allegro chips I have been recommening for quite a long time now. by using the correct componets there should be no problem with any port that is functioning correctly. The next Ledtriks setup I am working on for next christmas will be on a different setup all together so it will not need the lpt port but will be more expensive to build as it will be full color.
Hope this helps.
[url]www.diylightanimation.com[/url]
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