My machine now recognises the video card :-)
I still can't change the resolution (I can the refresh rate only) and the graphics are still jerky/flickery
Here's a copy of my Chameleon boot plist file but I will have another bash at this tomorrow
restored from basic copy and copied the two modified AMD5000 and ATIX3000 kexts files, put the latest (above) Org.Chameleon plist into the Extra Folder, repaired the permissons in the S/L/E folder using Kext utility, rebooted and it still didn't work ! :-(
So I did the following:-
1. Restored the original AMD5000 and ATIX3000 kext files into S/L/E then selected "show package contents" and manually edited the info.plist file to add 0x68f9 (after the IOPCIMatch bit of the AMD5000 kext and after the Cedar bit of the ATIX300 - replacing the previous value)
2. Moved the <key>AtiPorts</key> <string>3</string>
key so that it was below the <key>AtiConfig</key> <string>Eulemur</string> key (not sure this achieved anything
3. Repaired the S/L/E folders from Kext wizard and re-booted when completed.
Low and behold it worked. Also, when I checked, I had a 1024mb of Video RAM (as I previously thought it was 512mb) :-)
The only thing that doesn't work is that I cannot manually change the resolution to anything other than the resolution in my plist file. However, will try removing it from the plist, rebooting and seeing what happens.
Now taking backups as I've finally got a stable base platform to work from - Thanks Ed, Splonk & Janitor
** Was all going too well today - when I tried to backup using CCC it complains about a com.apple.documentationVersions plist file
should I be concerned ?, can I just delete it and copy it from an earlier backup or will it re-create ?? ***
Deleted the plist files in the com.apple.documentationVersions (in the 1 and 2 subfolders) and the backups run error free.
Apparently, they are meant to keep versions of documents. Will read up/ experiment to see if they re-create !
Hope I haven't done anything serious !!