Cannot install Adobe Creative Suite 3

Question

Would need some more tips about how to get Adobe Creative Suite 3 design standard to at all install.
The machines I want to install onto are PPC G5s dual core with 4 GB of RAM and Mac OS X 10.4.10 (we do not want 10.4.11 as we need Safari 2.0.4 to remain for some in-house apps which do not work in later Safari). Machines already have CS2 without Version Cue and without Bridge on them and those are supposed to remain there. We have corporate multi-user licenses for both CS2 and CS3 packages.
When I insert the CS3 standard design package DVD in the machines where I want to install, it goes through the motions of the first stage of opening the installer but when it comes to finding and showing the alternatives possible to install, it comes no further. It hangs and remains hanging and not responding. No error message.
It does that on any of those PPC G5s I've tried on so it it is not just one machine. Have checked DVD for dust and scratches but nothing serious there. Same DVD works as supposed to in any Intel MacBook or Mac Book pro.
Am of course logged in as an admin user with full privileges. No other applications were active at the time. Harddisks are formatted as HFS+ journaled.
I have saved knowledge base document with ID kb400584 to go through all parts of it next week when in the office again. It is about Troubleshoot installation problems (Adobe Creative Suite 3.x on Mac OS X).
What I've done so far is:
- try in a new user - doesn't work either, same problem.
- activated and logged in as Root user on machine and tried to install from that - doesn't work either, same problem.
- checked fonts - no problem fonts
- checked and repaired permissions - doesn't help one bit
- ran the standalone Mac OS X 10.4.10 combo updater - doesn't help (and no we do not want 10.4.11 on those machines)
- ran installer with and without any Wacoms, scanners etc attached - no difference (the users that need CS3 installed, only need Illustrator and Photoshop, they are the users who do our original artwork, drawings and such for the newspaper where I work so they do have Wacoms and scanners)
- tried on other machines with same installations and applications - same problem
What I have not done:
- started in safe mode (forgot about that until came home and read the above mentioned knowledge base document)
- started without network connected
- installed from the desktop
- checked firewall settings (I understand those can have an impact).
Have also not done the following yet:
- Use the Console utility to identify software conflicts.
- Use the Process Viewer to identify and quit processes that may be using large amounts of system resources.
Note that this is NOT a Leopard problem, it is 10.4.10 we are talking about and PPC machines. Note to that re-doing the machines from scratch is not an option as they are carefully set up for the environment those users work in both when it comes to applications and permissions and fonts and we have a couple of hundred machines set up the very same way. There are no problems with CS2 and there never has been any beta or try-outs of CS3 Adobe apps on them either.
If those actions I didn't do yet will help I will report back about it next week some time.
Meanwhile I would be grateful for any tips I could try that could lead to a successful installation.

Answer 1

Well. Continuation of the struggle to install..
Today on a third machine, same configuration but slightly newer PPC G5 dual something (don't have the specs here at home).
I did run the CS3Cleanscript.
1st twice in level one. No deal. Still uanble to install.
Then twice in level two. No deal. Still unable to install.
Then once in level three which killed the CS2 apps. Removed manually all CS2 apps and whatever belongs to them (I know where all that stuff is). Did a reinstall from scratch from original media of CS2 Premium (without Version Cue and GoLive) plus all updates. Refrained from putting in all our custom plug-ins and also to remove Stock Photos and fonts which we usually do. Restarted machine. Did a systemupdate of 10.4.10 with the combo-updater, still to 10.4.10, to be sure to have the right system parts in there. Restarted. Tried to install CS3 again. No deal. Ran the CS3Cleanscript level 2 again.
Ran out of time as had an appointment. That's where it presently stands: still unable to install.
Machines run no font management application (FontBook is present of course). Fonts are healthy and not damaged. Permissions are fine. Installing in new user with admin rights does not work. Installing as root does not work. Installing in safe mode and having turned off twain and wacom drives via the Activity Monitor has no effect.
Note: all CS2 apps run just fine and did too before reinstallation of them after killing them with cs3cleanscript.
Anything else to look for that you are aware of? I am starting to believe that it must have something to do with our special-tweaked systems and/or something else on these machines that gets in the way.
The CS3 standard multi-user package used is the Swedish version. I've installed that without any problem on an Intel MacPro used for video editing (yes we do that kind of thing as well in addition to the printed paper and the web). That machine did not have any of our standard system-setups though which is probably why it worked. Same application package also works without problem in MacBooks and MacBook Pros. It's just the PPC G5s for editing that has this problem. So apparently something is hiding there that causes the problem.
Thanks for all the suggestions so far.
I know what the next step is: To erase machine and install a clean Tiger-system from scratch. Then install first CS2 plus updates. Then try again with CS3. If that works it's the system itself that is the next thing to dissicate. Sigh.