heinrich,
Welcome to the posting side of the forum! Your English was just about perfect.
About the windows operating system.....hmmmm, guess I'm the only guy who thinks it works pretty good 95% of the time. When I consider all the things I do on it and it runs and does it's thing...I have to say I'm fairly impressed with it. Now on the other side of the coin....that 5% of the time I want to take a hammer to my PC.
Still though, my PA didn't run flawlessly 100%, it would occasionally lock up or get hung up on a midi note and do other dumb stuff some of the time.
Terry