Hi Guys, It seems nobody is willing to answer this question, especially MS guys. According to my findings, this problem happens only after WinME QFE # 25334 is installed and happens on both WavePci and WaveCyclic path. Martin, are you aware of this problem ? If so, could you please response a bit so that we can make decision on whether to use this path for WHQL. Regards, WenBin __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/