Currently Being ModeratedSep 27, 2011 7:54 PM (in response to AndrewFromTRF)
Regarding your computer hangs at grey screen, do you have any external USB devices or drives plugged in? If so, disconnect and see if that fixes the boot problem.
Currently Being ModeratedSep 28, 2011 1:18 PM (in response to JoshS182)
Happened AGAIN. For some reason it has been happening more frequently recently.
iMac 27", 4GB RAM, 1TB + 256GB SSD, AMD Radeon 6970 2GB, 3.4Ghz i7
It shows up on the external monitor, which is an I-Inc iF281D if it matters, as well as the menu bar and Dashboard on the built-in iMac display. I really want this problem fixed; it's getting very very annoying. I switched away from Windows to avoid problems like this.
Currently Being ModeratedSep 29, 2011 3:04 AM (in response to JoshS182)
Currently Being ModeratedSep 30, 2011 8:11 AM (in response to JoshS182)
Well, I have thought that when I updated the iMac to 10.7.1 I wouldn't have to worry anymore about that issue... wrong! When doing video editing, I still have these ugly pixelated icons and videos playing horizontal green lines with this annoying flickering effect! ****! How can you run your business like that! And not a single response from Apple on this issue. Need a coffee, what else?
Currently Being ModeratedSep 30, 2011 9:36 PM (in response to Technoguy3)
I was able to recreate a glitch and I was watching the temperatures closely using temperature monitor. And at about 174 degrees Fahrenheit, It started… I have a short video of it up on youtube. http://www.youtube.com/watch?v=5YMrU0xF_8c&feature=youtube_gdata_player
Currently Being ModeratedOct 1, 2011 8:50 PM (in response to JoshS182)
Kind of psychedelic, I know, but these are the icons I see when using cmd-tab to switch applications. They almost appear iridescent. I also have unreadable, pixelated rectangles that take the place of the text on the menu bar when I click on them (File, Edit, View, etc.).
27-inch iMac (mid 2011), 3.4 GHz Intel Core i7, AMD Radeon HD6970M 2048 MB, OS 10.7.1 (11826)
Currently Being ModeratedOct 5, 2011 6:29 PM (in response to JoshS182)
I'm having the same problem. Up until now, I wasn't sure whether the problem was due to Lion or hardware related but after reading through this community, I'm relatively certain that it's LION related. When I purchased the computer, it had Snow Leopard installed but I immediately installed Lion so I had no history with the system with the prior OS. What further complicates the matter is that this system was restored from my previous systems Time Machine backup so it wasn't a clean install.
I hope Apple gets this matter resolved quickly.
Lastly but unrelated....
Rest in peace Mr. Jobs....
Currently Being ModeratedOct 8, 2011 10:58 AM (in response to Shahaaim)
I have recently noticed that by changing resolutions and then changing back, it gets rid of the artifacts for a couple of days. Basically the same as a restart does but much faster way to get rid of the problem temporarily.
Currently Being ModeratedOct 10, 2011 3:12 PM (in response to escobar929)
the phenomenom just happened to my computer (iMac i7 last revision). The menus are blured, as are the icons on the command-tab screen, the dashboard or the icons in exposé (not the windows content, just the application icon on top of them). The rest is perfect (photos, videos, background etc.). I tried changing resolutions as proposed by escobar929, but it did not fix the issue. Hope that tomorrow's MacOs update will fix that
Currently Being ModeratedOct 10, 2011 8:51 PM (in response to JoshS182)
I have an iMac that I bought in August
My info: iMac 3.4 Intel Core 7, 16GB Ram, AMD Radeon HD 6970M 2048 MB
I have also an SSD drive, so the computer doesn't have to make some noise, but I can definitly hear the fan of the videocard.
Sometime, everything works fine for while, and after I'm starting to have some screens problems like the one attached or blury icons or the image get stuck.
The problem seems to be there from the first time that I got the iMac, but It became anoying so I started to look on the net, and seen that I was not the only one with the problem.
My next step is to call Apple Support.