Presi good = bad Treieber

So I bought this sound card, because I bought a new headset which supports 5.1 and thus this acquisition was necessary.
It it the preisgünstite model here at Amazom and it shows especially in the software!
Installed on NO EVENT the drivers from the CD, this result in my PC (XP operating system) to frequent blue screens!
The website of the company is in English and in general can be seen relatively heavy which sound card drivers for this article is true.
finally I have found me sound card drivers for a 7.1 card, this is going well ^^.
Quality I can not rate so well, because I have only a "5.1" headset.
However, I can hear everything clearly and have almost never a noise, even if the headphones are not in use.

mfg Bonta)

Conclusion: The software is bad. If you rankommt good driver the card, however, is worth the price.
Unfortunately, I have a whole day wasted to solve the problem and to get at all the reason for the blue screens out ...
why only 2 stars