Just to update my situation.
I am still unable to get the 6925 source to work directly with TSREADER.
Another reader suggested that I use the -1 switch in TSREADER to force it into uniprocessor mode, since I'm running on a multi-core computer, however that didn't help.
Also, thinking that possibly it might help to have another program initiate the tuning process, I tried to run Crazyscan first, and tune a transponder, then go to TSREADER and try to see if it will analyze the same transponder, but TSREADER gives an error suggesting that it is detecting that Crazyscan has control of the card. Also, if I try to run Crazyscan after I have already started TSREADER on a transponder, Crazyscan won't start, giving the error that it gives when multiple instances of the program are running, suggesting that TSREADER does in fact have control of the card, but is not detecting a lock or any data stream.
I have submitted a support request at the TSREADER site asking for suggestions as to why TSREADER works for the 2 people, one running Windows 7, and the other running TSREADER PRO, but not for people running Windows XP Pro with the regular version of TSREADER. If I get a response with any suggestions, I will report them here.
But I would really appreciate it if someone at TBS could try running the regular version of TSREADER with XP PRO, and see if they can duplicate the problem and perhaps come out with a working version of the source.
THanks.