If you have no need to use it, that's fine, don't install it, but it does have some settings that aren't available if you install just the display drivers.
I DO object to having to install the relatively huge .Net Framework version just for Catalyst, if nothing else uses that version, but if one has the spare disk space, why not.
Catalyst doesn't use much resources unless you actually access it and use non-default settings in it. Anything it loads listed in msconfig - startup can be disabled and it seems it still works fine.
""I recommend you DO NOT install anti-malware software before you install the drivers and associated software for the video.""
"I have kaspersky anti-virus running, no firewall at all. Am I to disable it until the ATI drivers install and reboot ?"
Disabling the resident modules, the part(s) that is(are) running all the time, in anti-malware software in their configuration in the program itself sometimes is not enough - some software will not install properly even if you do that - I recommend you un-install it, and any other anti-malware software, before you install or un-install the ATI software.
"...no firewall at all.."
If the Kaspersy software has a firewall, it automatically switches off the Windows firewall and uses it's own. If it doesn't, it is advisable to leave the Windows one enabled if you are NOT connected to the internet through a router, or use some other software firewall. If you ARE connected to the internet through a router, you MIGHT be able to get away with not using a software firewall - I have that situation and have not used a software firewall on my 98SE Epox system for years, but on the other hand, most malware and hackers set their targets on 2000 and up, and you MAY have problems without one in XP in any case - I use a software firewall in XP, usually the one built into Windows.
Un-install everything listed in Add/Remove programs for the ATI video. There is often a "master" entry such as "Un-install ATI video software" or similar - if you see that, use it - it will un-install all or nearly all of the video related entries. You will probably be prompted to reboot - reboot in any case.
Go to Add/Remove Programs again, as many times as you need to.
Make sure all the video related entries are gone - Catalyst, the drivers, etc. - most have an ATI icon - but don't un-install the ATI main chipset drivers - if there are any such video related entries there, un-install them too, and reboot the computer.
If an ATI module for video capture has been installed, you will probably see an entry for DAO without an ATI icon - if you see that un-install it too.
Leave whatever .Net Framework version that was installed from the CD that came with card alone - there may be several in any case - different .Net Framework versions are independant of one another, and you may have other programs that require the same .Net Framework version, or another one.
When you have un-installed all the video related entries in Add/Remove, and have rebooted after un-installing all of them at least once....
Look in Device Manager and see what it lists for the Display Adapter in Device Manager - if it says ANYTHING other than some type of standard VGA adapter, Uninstall all entries that say otherwise, but DO NOT reboot the computer (that sets Windows to a default VGA safe mode), and THEN install the drivers from the CD for the video card; THEN you can reboot.
(OR - you could try loading the lastest versions instead - see [NEXT] below)
Try your system for awhile. If you no longer get the error you're fine.
If you still have problems, you could try
- un-install just Catalyst in Add/Remove, and see if you can still do what you wanted to do in Display - Settings - Advanced somewhere, or similar.
If you can't do what you wanted to do, you can
- uninstall the ATI video related software again, and
get the newest version of it from the AMD web site. The top download is the all-in-one default - it installs the display drivers and Catalyst and possibly other things.
If that doesn't help, which is unlikely, or if you want to try an alternate solution...
- uninstall the ATI video related software again, and install Omega Radeon drivers - they come with a Control Panel instead of Catalyst that does not require a .Net Framework version to support it, and the Control Panel does all or nearly all the things Catalyst can do.
The drivers and control Panel are fully approved of by ATI, but support is provided for them only on the OmegaDrivers web site, although, you can often use the info on the ATI part of the AMD web site in any case.
The only thing is, he has not finshed making drivers for Vista yet/
NVidia or ATI drivers
A bonus is the Un-install for this software seems to be very well written - it seems to un-install EVERYTHING it installed, unlike most other un-installs.
NOTE that if you need to install support for video capture (or if you have an ATI TV tuner chipset on a card), you still need to go to the AMD site and get the drivers that support that and load them - they're available as a separate stand alone download further down on the page that lists the available drivers.