I have two win-XP prof SP3 systems both up to full microsoft maintenance.
One system is original XP-Prof, over the years updated with SP1-> SP2->SP3 and latest maintenance.
This systems encounters all the problems previously described by TULLIK with PT lite v 561.
The other system is a less than one year old "Out of the box Win-XP-Prof SP3 system" with latest maintenance.
This system runs without the problems, as descrided earlier by TULLIK, with PT Lite v561.
These two systems, although both Win-XP-Pro SP3 do differ!