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Mountain Lion Trouble

267 Views 3 Replies Latest reply: Aug 16, 2012 12:11 PM by thomas_r. RSS
Dnomyar1956 Calculating status...
Currently Being Moderated
Aug 16, 2012 11:44 AM

I purchased a new 21.5" iMac in May (2.8 GHz Intel Core i7 with 4 GB of Ram) and just recently upgraded to Mountain Lion last week. Since updating I have noticed significant reduction on processor speed switching between desktops, Application handling and finder operation. The finder keeps losing the links to my server and is very slow on the scorlling. When I am openning a new application the active desktop it is assigned to takes longer to switch over. After installation I had to completely reinstall all my print drivers and have noticed a real slowdown waking up from sleep mode. I am running Creative Suite 6 and when I am in InDesign working on a file and have to switch over the network loses connection and I have to force quite InDesign. Additionally if I have Mac Mail and Outlook open at the same time I have tremendous slow down of each app when accessing my emails. I use Mac Mail for my personal email and Outlook for work. Across the board I am not entirely happy I updated to Mountain Lion. I am not running any real special apps and have not tweaked my machine from the default settings it originally shipped with.


I am curious if anyone else is having a lot of performance issues. I have ran repair disk permissions three times and reset the NVRAM. Any suggestions would be appreciated.

iMac, OS X Mountain Lion
  • thomas_r. Level 7 Level 7 (26,985 points)
    Currently Being Moderated
    Aug 16, 2012 11:50 AM (in response to Dnomyar1956)

    Your experience is not normal. Try some of the troubleshooting tips in Understanding upgrade nightmares.

  • BarrettF77 Level 1 Level 1 (45 points)
    Currently Being Moderated
    Aug 16, 2012 12:00 PM (in response to Dnomyar1956)

    What you are dealing with is similar to what I am dealing with on my 27" i7 Quadcore iMac.  Lion it worked like a charm.  Once I upgraded to ML, all stability went out the window.  It is a driver issue with the OS and I am hoping it is addressed in 10.8.1 


    There have been other threads about this on the 21 and 27" iMacs.  I've tried all kinds of reinstalls and repairs including a clean install.  It is a fault with the OS and not the hardware.  Don't bother calling Apple as I did this and it didn't help.  It's going to have to be addressed in an update.  My current gen iMac that I listed above is so bad that I haven't even been able to use it and has remained powered off now for the last two weeks because something as trivial as media playback or cursor movment on screen isn't even able to be achieved without hiccups and skipping. 


    I tried a dual boot of a different OS, worked like a charm and no hiccups, so the issue is software related. 


    Sorry I don't have a fix, but Apple released a beta product to its customers and we are getting to be paying beta testers.  Just hang in there and be patient for the update to show it's avaialble. 

  • thomas_r. Level 7 Level 7 (26,985 points)
    Currently Being Moderated
    Aug 16, 2012 12:11 PM (in response to BarrettF77)

    As I told Dnomyar1956, that's not normal. You obviously have your own opinions about that, as you've posted condemnation of ML on multiple topics now, but you don't seem to have any hard facts, only assumptions. What have you done to troubleshoot your problems?


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