Adobe Flash video playback issues reported on Apple’s new 27-inch iMacs

“Some users of the new 27-inch iMac have expressed issues with the hardware, specifically stuttering when playing back Flash content on Apple’s new desktop system,” Slash Lane reports for AppleInsider.

“Two threads on the Apple Discussions support forums are filled with users who claim that Flash-based content on the Web makes processor use on the new 27-inch iMac spike, and the video becomes choppy,” Lane reports.

“Theories on why the issue exists are wide, with posters suggesting it could be the Flash player software, Mac OS X 10.6 Snow Leopard, or the computer’s hardware,” Lane reports. “A number of users noted that running Flash videos in Windows 7 via Boot Camp allowed playback with no slowdowns, suggesting the problem could be Snow Leopard related.”

Full article, with a video of the issue occurring on an iMac, here.


  1. Oops, to clarify – I use Click2Flash to watch the H.264 versions of YouTube videos via QuickTime, thus bypassing Flash entirely. That’s what keeps the CPU from doing its usual spike whenever Flash runs.

  2. I think the last update to Flash introduced some sort of bug. I have 10.4.11 on an early 2007 iMac and I frequently get an error message saying I “need to adjust my global storage” on the Adobe Flash site.

  3. Interesting how Windows 7 works perfectly!!

    Could Snow Leopard have a problem not the perfect Snow Leopard that deletes users accounts and data!!

    Ditch your Mac’s go back to Windows!!!!

  4. Adobe support indicates that both Shockwave and Adobe PDF plugins are 32-bit, whereas Safari is running 64-bit. I’ve been wrestling with bad memory leaks since upgrading to Snow Leopard. Earlier this week I found that the Shockwave plug-in had consumed over 1 GB each of real and virtual memory and was pegging CPU utilization at some 170% (yes, that’s what Activity Monitor was telling me). Even killing Safari and logging out didn’t give me the expected free memory (per iStat). Had to reboot.

    Right now I’m running Safari in 32-bit. I’ll see if it helps.

  5. I’m with John and Gabriel, I installed Click2Flash on my Mac last week. It’s the only third party plug-in I have installed on Safari. I could not be happier with it (Disclaimer: I don’t work with them, I’m just a user).

    I implore all Mac users who don’t like flash to support Click2Flash and install it.

    Clean web pages with the ability to play Flash when you want on Safari, just like the Camino browser, but also the ability to substitute Flash with H264 on Youtube when available.

    Now my processor doesn’t heat up like a hot plate when I use Safari.

    Rid the Mac platform of the resource hogging Flash.

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