First, Safe Boot , (holding Shift key down at bootup), use Disk Utility from there to Repair Permissions.
Then move these files to the Desktop...
Reboot & test.
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.
I did the safe boot. But under Library/Preferences/com.apple I find none of the plists given here. There are others, but not one of these. What am I doing wrong? Or is the absence of these plists the problem?
At one point, several years ago, I took this G3 to a computer shop and they downloaded a software update. I have not encountered any problems, until this. Actually, I never modified a jpeg this way before, so this may not have been working for years. What's next?
Many thanks for your suggestions.
Yeah, that is the wrong Library folder, as Klaus1 says it's in the house icon.
I find Spotlight worthless for searching.
Find Any File...
Hold Option or alt key when selecting Find to Find All.
Near the bottom of the page.
BD - thanks!
I followed all the steps you outlined. Still same twirly wheel. These jpegs are about 2 MB, and I suspected that the size was slowing down the process, so I just tweaked the contrast slider a tiny bit, got the twirly wheel, went outside and watered the garden. When I came back in, no twirly wheel, and the contrast had changed. So it is possible to modify these images, but this still seems to not be working correctly. On my power PC iMac I can see the image changing as I move the slider. With the G3 iMac I would have to take a guess, move a slider, wait some time, and then see the change. Not at all useful, and I suspect not as designed.
Are my expectations too high? Or should this iMac modify the images as I move the sliders? I suspect so. Any ideas? And many thanks for your help.
At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware> and report this upto but not including the Serial#...
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.21f4
Well, RAM is maxed out for that model...
Though slow, I wouldn't expect the problem with whay you're doing...
see how many of these you can answer...
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free Disk space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab of Activity Monitor, are there a lot of Pageouts?
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts (Users & Groups in later OSX versions)>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...