DreamWeaver CS4 trial installation fails

I've got a GoLive9 full Version from my provider which I could not install.

So I downloaded the german Dreamweaver CS4 Trial. I deleted everything on my
drives AND registry looking bit like "dreamweaver"and "golive". Did use
utilities and searched by hand. I started the setup.exe from the download.
Unzipping seemed to work. I found the folder on the desktop (731 MB
(766.547.466 Bytes) // (19.569 Files / 158 folders). The istallation started
automaticly. After that the behavior is exactly the same for GoLive9 and CS4:
Setup starts "initialisation", comes to about 90%. For a very short time a
screen pops up (I cannot catch it, even with a CamCorder in front of the sceen)
and the installation freezes. I have to kill the process manually.

None of the other posts here fits to this problem. Anything I can check or
information I could give (log-files if existing ?)

Sytem: not Acer, E6600 @ 775DUAL-VSTA; 2GB DDR2/533; ATI9800AIW; XPpro/SP2
German; 1x IDE WD 200GB; 2xIDE Maxtor 300GB; 2xSATA Maxtor 300GB; 2xUSB SeaGate
750GB; 1xUSB Maxtor 320GB; alle NTFS; DVD SH-S182M

C:/ 27GB free

see picture at http://srv025.pixpack.net/20090216163614839_hanncvniws.jpg

Thank You in advance

Kurt