3.26 can't install in .net RC1,RC2 (3663, 3718) in my system while 3.23 or 3.20 can.

It cause the system stop when I install VS.net, at the time I change the disc from 1 to 2. (Daemon Tools 3.23 , .net RC2 3718) It appears every time.

Some system, appear 'Can't detect SCSI device' error. ( Win 2000, IBM x_series (no raid controler))