Please let me know if that didn't work, so we can continue troubleshooting. Don't Rate my answer until you are satisfied.
selecting white on black has made it easier to see what's on the screen but the colours are not back to normal e.g what was green is now displaying as purple.
what is the option key? I tried the alt key instead but this did not do anything.
Reset PRAM and NVRAM (Solution 1)
Restart in Safe mode (Solution 2) Make sure that the computer is shut down. Press the power button. Immediately after you hear the startup tone, press and hold the Shift key. Release the Shift key when you see the gray Apple and progress indicator. Let the Mac boot up... Run Disk Utility in Single User Mode(Solution 3) Turn your Mac off. Turn it back on and this time hold down the Command (Apple) key and the S keys at the same time. Then type the following command... /sbin/fsck -fy (note the space between fsck and -fy) If you can't run /sbin/fsck - fy then type only fsk - fy Hit return and the disk utility should run and let it finish. When it finishes and there is no error, then type reboot and hit return. Let the Mac boot up. (Disk Utility will fix all system errors, bad preferences files etc)
Hi Ashick, I'm back in - I tried Solution 1 but no difference. fyi when the computer restarts the colours look normal when the login prompt is shown. Immediately after I login the colours look normal for about 5 seconds then change. Does this help with how to proceed?
Hi solution 2 eventually signed on - display looks normal - do I need to restart to sign on normally or do I need to do anything else?
even though everything looks OK after solution 2?
when do i select command plus s?
Hi, solution 3 said that HD was OK so I rebooted but the colours have returned to being odd
No - same again
I have found the Mac OS X install DVD for 10.5.6 (i'm now on 0.5.8) and an applications install DVD. I also have 5 DVDs that I must have set-up at some point but are not labelled (not sure if I was instructed to take copies at some point). I also have a Mac OS X Snow Leopard CPU drop in DVD which I have never used. If I reinstall the OS does that have any consequences on the data (e.g. photo files etc.)
I may as well while I'm at it - I take it I install X 10.5 and then put snow leopard 1.6 on top?
Hi Ashik, I started the install before your reply arrived. Its complete but unfortunately after briefly looking OK the colours flicked to look odd once more - its like a colour negative.
Goto Universal Access and see if you can change from there. If that didn't work, create a new admin account from System Preferences > Accounts. Then logout from Apple menu and login to that new account. Do you have problem in that account ?
PS : We have some technical site problems here. So I will not be able to get back to you properly. I'll get back to you later when everything is fixed here. Sorry for the inconvenience.
Hi Ashik, I reversed your earlier advice and reselected the "black on white" radio button and all looks OK now - although selecting "white on black" earlier partially helped so not sure if that is what to expect. So now that I am back to OS X 10.5.6 do you recommend that I move to OS X Snow Leopard 10.6 rather than getting any software updates? And before I upgrade you recommend that I backup my data files?
Yes. Go ahead and upgrade to 10.6 Snow Leopard. Then do all Software Updates from Snow Leopard.Yes, backup your data before upgrading. If you like my service, please rate me as Excellent Service.Best Regards,Ashik