Today I downloaded newest version (5.10) of Catalyst with Contol Center (yes I have .NET installed), after I select what to install it pops-up an alert that I need to install from Administrator account and quits, well I am installing from Administrator account
I tried quitting all the other applications (including anti-virus), launching it via run-as Administrator (while being logged as Administrator ), but no help.
I'm currently on Catalyst 5.9 CC, Windows 2000, Radeon9100 128MB VIVO, everything up to date, is anyone facing a similar problem?

I'm using the 5.10 XP driver, which I downloaded this morning and I had no problems.

Before you install the newest version you have to:
1. Uninstall ATI Control Panel, and ATI Display Driver via Add/Remove Programs followed by a reboot.
2. Then you can install the newest version.

I don't recommend and won't ever again use the .NET version it seems very sluggish and slow loading, plus what are you really getting just a pretty GUI you'll only have open a few seconds at a time to change a random setting, not worth the extra MB either.

Edit:
Can create another temporary Admin account for the installation?

You mean you're on WindowsXP?

Yes I know it is recommended to do it that way, but for years I've been installing straight over the old versions and there were no problems. Is it somewhere explicitly said that 5.10 must be absolutely a fresh install (preceded by uninstallation of older version)?

That's right, but there's one feature that CC has and CP doesn't - with CC I can enable things like FSAA on non-administrator account, with CP it is allowed only on administrator account.

I think I have some problems with my current admin account, for example I lately installed 7zip, or Acrobat Reader 7, and they behave like they were installed from non-administrator account (other users didn't get file associations, shell extensions, etc). Looks like admin privileges got lowered on my system, worrying.
Anyway, can I expect some problems if I create a new admin account, and delete the old one (assuming that I'll keep login & password the same)?

I'm on Windows 2000 at the moment, and I encountered a problem recently, after upgrading to 05.9; nothing was being "accelerated."

I uninstalled everything ATI, and reinstalled 05.9, and now everything is back to normal.

Yes I'm using Windows XP.

Well for years in the install information ATI has blatantly stated is that the old drivers, and old control panel should be removed followed by a reboot before installing the newest drivers and control panel. This is supposed to eliminate having a mixed installation of old and new drivers (.dll) files which can cause problems.



I honestly don't know if you'd have problems or not. Since I've never used Windows 2000 I don't know what the differences are between it and Windows XP.

You don't necessarily have to delete your original Admin account, you could try a new one to see if it will fix the problem, I wouldn't so hastily delete the original Admin account as that can involve hours of reconfiguring things to your liking.

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Perhaps a bit off-topic:

Rather this is the same or not for your situation here's some more info:
In Windows XP some parts of the registry can get messed up in a user account, the HKCU ("HKEY_CURRENT_USER") region of the registry. Creating a new account "may sometimes fix the issue" so long as it's just information in the HKCU region of the registry, whereas if it's in HKLM ("HKEY_LOCAL_MACHINE") region of the registry it will effect every user account.

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Edit:

You may want to take kjoonlee's advice, hence if it's a problem with the Windows 2000 drivers it'd probably be safer to revert to the older version that's known to work.

Ok, thanks for the replies guys. I decided to wait till 5.11, if there will be problems with it too, I'll try clean install and if it won't help I'll create a new admin account. A friend of mine who has almost the same system as me lately installed 5.10 without any problems, so I'm quite sure that I have some admin account related issues.
As for creating new admin, I use my current admin account only when I need to install something, it's not customized in any way, my main framework is on limited advenced user account. So I guess I'll just move My Documents where I keep all the installs onto the new admin account and if everything will seem fine I'll delete the old one. Eventually I'll export old admin's signature, even though I don't have anything encrypted...

EDIT: I fixed the problem. I launched regedt32 and found out that HKEY_CLASSES_ROOT had owner "impossible to determine" and permissions were set only for Everybody. I've set owner to Administrators group, fixed all the permissions, told it to reset inherits for sub-keys and so far everything seems to be back in order (Catalyst 5.10 installed without any problems, maybe except that it didn't prompt to reboot after installation so after few minutes of waiting I rebooted on my own). I have no idea why registry permissions got altered that way, maybe because of file-system corruption I had after silly overclocking attempt, or maybe I got hacked, hell knows...