Hi to all, I have xone 4d with upgraded firmware. I have hp pavilion dv7-2250em Ok now the problem: When i play in traktor all is configured as it should be. I have 2 Disc in laptop on one win 7 on other win XP When i play in win7 i get some strange things happening. After i play for about 30 min sound is starting to get more and more distortion and crackling. Second thing the same setup on win Xp and there is no problems at all. So please someone help me. ps. Wireless is disabled during play as network adapter Bluetooth also.