G3 iMac video problems

After some recent problems with my iMac shutting itself off with no warning (diagnosed from other posts on this site), I replaced the PAV board, but now when I try booting up, I just get a solid green screen after the usual start-up chime. Does anyone have any ideas what the problem could be? Is it possible that the new PAV board is bad, or that I didn't connect something correctly when installing it? The PAV board is new, not reconditioned (to the best of my knowledge).

I tried resetting the PRAM, but it had no effect.
When the power button is pressed, the usual start-up chime is heard, and the hard drive begins to spin up. After a few seconds, the green screen appears, the hard drive spins down, and nothing else happens.
I'm starting to wonder if something else failed - like the hard drive - along with the PAV board.

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24" iMac Video Problem on Window XP

I brought 2 units of 24” iMac last month and using boot camp to install windows xp. Both iMac are completed the installation of window xp and one of the iMac run normally but video problem found on second iMac. After running in window xp about 5 – 10 mins, the screen images distort suddenly. If computer restart again, the display will become normal for 5-10 mins and distort again. But the second computer runs normally in Mac OS. Please kindly help….

Are the driver installed, or installed properly?

Apple aware of video problem in the new Intel iMacs

Macworld Daily News
Thursday - February 09, 2006
Apple investigates Intel iMac Front Row problems
By Macworld staff
Apple has confirmed it is aware of, and investigating, reports of video problems in the new Intel iMacs.
Recent reports claimed that some users had experienced random horizontal lines and other video playback problems when playing video in Front Row.
"Apple is aware of this issue and is looking into it," the company said in an email to a web-based pressure group that has been gathering information on the problem. "If a customer has any technical issues, they should contact AppleCare."
The problem is allegedly software-based.

"Sure, I'd be more understanding had it been an issue that required a very special set of conditions to trigger"
Apparently it does as this issue is not affecting all users.
"As I was told, affected owners would not be proactively notified"
Where you you prefer them to use their limited resources, trying to figure out who MAY be affected and sending them some sort of detailed action plan, or spending the resources determining the cause of the issue and developing a solution that can be distributed to the ones who need it not only now, but those that may discover the issue next week?
I can understand that you are frustrated, and don't blame you for feeling that way, but this is an all new piece of technology and bugs are going to come up that were missed in testing. No company can afford to test at a 100% level. To do so would drive the costs so high as to make it impossible to sell the product, especially to the market the iMac is aimed at. Apple has a pretty darned good track record of resolving issues quickly when they appear. Until they do you only have a few choices. Use the workaround until the solution appears, waste time complaining about it, or sell the iMac and purchase a different product. That's really about all you can do!
It was good of you to spend your valuable time, and yes it is valuable, trying to help the engineers or service reps solve the issue. That they spent that much time with you should show their commitment to solving this issue.
Be patient, give them a chance, they have not had long to try and figure this out.

IMac Still Has Video Problems after Upgrade

I did the firmware and software upgrade to my iMac, which was supposed to fix the video problem, however the problem continues. I am using OS 10.4.11. My computer never "froze" however the screen went haywire. I would have to do a soft restart (if I could find the restart dropdown window) or I would have to do a hard restart. Now I can do a screen refresh to do a soft restart.
Is Apple aware the these Intel iMacs are a POS? I use it for 3D design and I can't work more than 10 minutes before my screen starts going wacko. I've used Macs since 1985 and this is the first POS Mac i've owned. I don't want to have to get another computer, I can't afford it.
Any others out there with the same problem? Any solutions?
Thanks

I like AppleCare, as you get three years of that unlimited phone support. I know many consider it just another extended warranty, but note it can be legitimately purchased at a discount.
Amazon, retail computer stores, also a number of sellers abound online and on eBay, and a price mentioned by someone else on here two years ago that hasn't changed since then - check out L. A. Computer Company, online - you might be surprised!
(I have no affiliation with them.)

Could Bad RAM Cause Video Problems in 1st Gen 24" iMac

I have been having video problems with my 1st Gen 24" iMac over the past 6 months, but recently the machine wouldn't turn on at all. I left it at my local Apple Store to be diagnosed and they said that it was just a bad stick of RAM (not a big deal, its cheap these days). But what I forgot to ask them was, could that bad RAM be causing the video problems I've been having or is it the video card also?
Thanks!

Are you still having video problems since the ram was replaced? If the problem went away then it was the cause, it not then something else is.

IMac 600 SE - strange power/video problems - need motherboard?

Hello all,
Got this "project" iMac, have no knowledge of its history. Here's what's going on:
When I first got it, it would take 3 or 4 tries for it to fully boot up, on the first try it would shut off after a second or two, the next try it would get a little further along before shutting down and finally on the 3rd or 4th try, it would boot up completely.
Initially, it had a dim display and a bunch of wavy horizontal lines, like a TV with bad reception using a "rabbit ears" antenna. The person I got it from said from what he had learned, he thought it was a power supply problem.
So I replaced the down converter/power supply with a spare one I had leftover from a previous motherboard replacement, which made no difference at all, same problems.
So I then checked the firmware, which was the latest version (4.1.9). Then I did a PRAM reset, which helped, followed by a PMU reset. I did the PRAM reset several times when problems cropped again, and have done the PMU reset twice, resetting the clock both times.
The shutdowns on boot up have disappeared, but it will occasionally shut down out of the blue after being on for awhile now. The horizontal lines have disappeared, but it now has a strange video problem:
The geometry of the screen is off-kilter by default, so when I go into System Properties to reset the geometry there, and I use the "Rotate" command to correct the overall incline in the display from right to left, the display gets dimmer, and sometimes the horizontal lines reappear, usually on the right side of the screen. When I click on "Factory Defaults", the display gradually brightens again, and if horizontal lines are present, they disappear. This phenomenon doesn't appear to occur when I adjust the display height and position, only with the "Rotate" command, rotating it counter-clockwise. I believe the iMac even shut down once when I was doing this.
I have also noticed an occasional higher-pitched "whine" on boot up, which usually results in an eventual shut down.
So, are these problems symptomatic of a bad motherboard or a bad video board/card? Since I have the latest firmware and have tried both PRAM and PMU resets, and the occasional random shut down still occurs, it makes me think it's a hardware problem.
I just need some feedback here before I purchase a replacement motherboard.
Also, can the video board/card be replaced separately?
Thanks for any ideas/suggestions/help!
iMac 600 SE Mac OS X (10.4.3) 600MHz, 384MB RAM, 40G HD
iMac 600 SE Mac OS X (10.4.3) 600MHz PowerPC, 384MB RAM, 40G HD

flaash...
In your situation I believe 2 components need checked first. PAV board and the CRT. Or essentially anything shared by the 2 items, such as the CRT yoke/gun board.
As far as the logic board goes, the video chip-set is part of it (soldered in) and not repairable. Those parts rarely "weaken" (normally just die) so I would be less likely to suspect them.
...Ron

Mini DVI to VGA Adapter Video Problem

This year at Randolph-Macon College we replaced the Math lab Emac computers with IMac G5 Intel machines. The laboratory has an NEC model MT1050 projector with a manufacturer’s date of August 2002. We can not seem to get rid of ever present scan lines. We can slow them down and speed them up by adjusting resolution and refresh rates, but nothing will remove them. We are connecting the IMac to the projector via the Apple Mini-DVI to VGA Adapter. It is specifically designed for use with the iMac (Intel Core Duo), and the adapter connects to the Mini-DVI port of the computer and the VGA end of the adapter to an external VGA monitor or projector.
Troubleshooting the problem we have swapped IMac Intel computers with no luck, but we still have to use the Apple Mini-DVI to VGA Adapter. When we hook the projector to a Intel Mac Book Pro, we have to use a different adapter, but then it works perfectly. In fact, everything we try using other adapters works fine, it’s just when we use the Apple Mini-DVI to VGA Adapter that we experience the video problem.
Has anyone experienced this problem and if so, have you been able to remedy it?
iMac (Intel Core Duo) Mac OS X (10.4.8)

I don't have much to suggest, except to ask if you can try with a different mini-DVI to VGA adapter. (i.e. do you have more than one on hand to make sure yours isn't just defective?) Make sure it is firmly seated into the iMac.
I use the same adapter to provide an extended desktop on an old CRT monitor and the display is great.

Why does a Safe Boot fix my video problem?

After visiting my local Genius Bar twice (and getting two different answers), I erased and reinstalled Snow Leopard 10.6 on my late-2006 "white plastic" iMac.
I reinstalled the version of SL that came with the iMac, then upgraded it twice to OS 10.6.8. Software Updater says all of my OS components are up-to-date.
My video-corruption problems ("ghosting", "tearing", pixelation of icon, then the kernel CRASHES within 20 minutes) appear when I boot normally. But they permanently disappear when I reboot into the Safe Mode!
I've search Apple.com and every other site I can find without a clear answer to this:
What extensions, StartUp items, software daemons or gremlins DO NOT load in Safe Mode? Shouldn't one of them be the cause of my problem? Or does Safe Boot work on a hardware-level, too?
This happens on ALL accounts, both Admin and regular users. No external devices are connected except the wired mouse and wired keyboard.
I've zapped the PRAM three times, and I've unplugged it for hours. Disk Utility shows everything is good, too. There's about 50 gigs left on the internal 750 GB hard drive.
The so-called "Geniuses" both ran their Triage OS off an external drive and my iMac hardware passed ALL of their tests. One said it just needed a reinstall (a free fix!!), and the other said my video card is bad ($800, and I have to use an outside repair shop).
Can someone give me an idea how to proceed? I've been working in Safe Mode for days, but that prevents me from using: Sound, my home network, fonts, Preview, editing in iPhoto, etc.
Thanks.
Specs:
Model Name: iMac
Model Identifier: iMac6,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Purchase Date: March 2007

Hi, Mike,
Thanks for the quick reply.
I read the linked post about QE, but I don't see how it could help me troubleshoot my problem. Could you clarify: is QE a piece of "software" (that is, a file -- like an extension)?
If QE IS a piece of software that is disabled in a Safe Boot, I should be able to move it to my Desktop and restart. If my video problem is eliminated, the QE software is the problem, right?
But then, if my problem is caused by a file/extension, why would the problem occur (and be eliminated in a Safe Boot) right after I re-installed the OS? Shouldn't all the System software be pristine right after re-installation? But since it's NOT fixed by the re-installation, it seems like a hardware problem -- like the expensive video card. That's what's confusing me.
So, I'm proceeding as if the problem is caused by a file being loaded into memory and I'm trying to disable the items that don't load in Safe Boot Mode one-at-a-time. I just need a specific list of what those items are (and their locations on my hard drive).
In OS/9, I used Conflict Catcher to do this automatically, but I haven't found an OSX app to do the same. So I'm trying to do it manually.
Please excuse my layman's terms. Any help is appreciated.

Possible video problems in iTunes 8.1 [no grid or cover flow views]

I had posted this problem under iTunes, but mentors there suggested instead I connect it to a video problem
*"...my video drivers or other related problems I've had over the last two months with the iPhoto...*
*Ah, didn't know about that. Try re-posting it as a video problem in one of the other forums. It begins to look less like an iTunes problem."*
So, the problem is that I cannot get any other view in iTunes other than LIST. The grid view is completely non functional and is grayed out. The cover flow only shows as a black screen without any logo (such as the familiar music symbol). I never had this problem in iTunes until I upgraded to 8.1.
It is curious that when I select tunes from my **own playlists*, the grid view appears both in the "view choices" and its respective icon is NOT grayed out. That does not happen when I select genious playlist: then the icon is grayed out and there is a grayed out "View choice" in the pull down menu. The same problem exists in my own playlists whenever I select cover flow, however. It is always black without any images or logos displayed. It's an active choice in the pull down menu, and you can click on its icon...but nothing appears.
Message was edited by: Bronco 01
Message was edited by: Bronco 01

Carolyn Samit wrote:
HI Bronco,
Go here and make sure your Mac meets the minimum requirements for iTunes 8.1
http://www.apple.com/itunes/download/ <--- left side of the page</div>
*Macintosh Hardware*
*Mac computer with an Intel, PowerPC G5, G4, or G3 processor*
*Screen resolution of 1024x768 or greater*
*Playing videos purchased on the iTunes Store requires a Mac computer with an Intel, PowerPC G5 or _1.0GHz PowerPC G4 or faster processor_*
*Playing HD-quality videos purchased on the iTunes Store requires a 2.0GHz Intel Core 2 Duo or faster processor*
*512MB of RAM; 1GB is required to play HD-quality videos*
*Playing videos also requires at least 16MB of video RAM*
*A broadband Internet connection is required to use the iTunes Store*
*Macintosh Software*
*Mac OS X version 10.4.10 or later*
*QuickTime 7.5.5 or later*
*200MB of available disk space*
As best I can tell, my iMac meets all criteria. However, it is not clear to me that it meets the criteria for playing videos (processor speed). I can't tell what this processor speed is; where do I discover that? Under "About this Mac," it says I have *_512 MB SDRAM_*; is that the answer that denies this functionality?
*"The grid view is completely non functional and is grayed out. The cover flow only shows as a black screen without any logo (such as the familiar music symbol)."* Your video card may not support cover flow.
Carolyn
Perhaps, but this is not obvious to me. As I posted earlier, iTunes demonstrated cover flow capability in its prior version. Did it change once 8.1 and now 8.1.1 came out?
Message was edited by: Bronco 01

Video problem on 1.42 ghz--covered under repair extension?

I have a 1.42 ghz eMac that started showing scrambled video about six weeks ago. After a bit of research, I came across the eMac repair extension program. Apparently it covers only 1.0 and 1.25 ghz machines. But, my serial number falls in the range covered.
Also, I hadn't turned it on since the problem came up; last night I did, and there were no video problems. For about two hours, then it was right back to the scrambled video. Did the same thing happen for those of you with the 1.0 and 1.25 machines?
Any thoughts or info to share? Anyone else with the problem on a 1.42 ghz machine?

cosmic hobo,
I picked up that tip about taking photos of intermittent screen glitches back in the nVidia graphics eMacs days, when raster shift affected a number of eMacs (including mine). I'm afraid I no longer recall who gets credit for the original idea.
You raise a good question about why the leaking capacitor issue only seems to be a serious problem with first-generation G5 iMacs and with eMacs from the 2004 time frame. Certainly other Macs, with and without integrated displays, were being sold in large numbers throughout the period. It might be worth the time to try to look up what factories where building which Mac models at that time, figuring the bad capacitors may've ome through the vendor to a single factory. That's almost certainly considered properitary information, through.
(Off-topic: let me offer thanks to you and Don Morgan, among others, who helped get the eMac capacitor issue recognized. It certainly took more patience than I have to wade through all the rants and whines in that 675+ post monster to work out the parameters of what was affected.)
(I reserve the right to laugh my head off at the poster who demanded action against Apple for the crime of using capacitors in a computer in the first place; I trust that poster wasn't an EE major in college!)

G3/400 (early2001) iMac video dark

My sister has an old G3/400 (early 2001) iMac that had the screen go black, so I have been working with it trying to resurrect it and grab the files off of it.
I thought the video was toast, but as I have messed with it, I've found that when powering it down, the video will flash on screen for a second or two before the machine shuts down and I can actually see what is there (if only for a moment) before the machine powers down.
I'm thinking that if the CRT had gone bad, I wouldn't see anything on startup or shutdown, so why do I see a flash of life on shutdown with this machine, and is there a way to bring the video back?
Ideas?

I think that model iMac 400 has a VGA port hidden under a cover plate on the bottom. If it does, then you could connect an external monitor to see if the problem is just the CRT or something more serious like the PAV board. If the external works, then she could continue to use the iMac without problems, or at least have time to recover files.
References:
http://support.apple.com/kb/HT2682
Image showing the cover:
!http://km.support.apple.com/library/APPLE/APPLECAREALLGEOS/HT3000/HT30001.gif!
The panel covering the VGA port is the one just right and below the power cord.

T400 - Video problems and a long wait for repair...

Hi,
I'd just like to state my experience with Lenovo Customer Support for a video problem with my T400. Bottom line, as of today, it's been around 27 business days that it's been with Lenovo, and 41 days total since it's failed on me, and nobody, including Lenovo Customer Support, seems to know what its status is exactly, except that they're waiting on a part which has no ETA.
In July 2009, I bought a T400, a 2764CTO version with the switchable graphics between the internal intel graphics and the ATI GPU.
All was well until February 1st, 2010, when the LCD sudden wouldn't work. Well, it would work, but the screen was very very dim, even with the display maxed out on brightness. You would have literally bring your nose to the screen in order to even make out any text or images - definitely unusable. However, if you hooked up an external monitor via the video output, the T400 would display video output properly that way. When I did this, I noticed that the switchable graphics option wasn't there any more - couldn't switch to the ATI GPU. Based on this, I figured it must be a video card or LCD issue, or a combination of both.
So, I called Lenovo Customer Support (CS) at 1-800-565-3344, since I'm up here in Canada, and I initially was issued a case number of 41JRFSD, and I agreed to send it to a local Lenovo Repair Centre. Oops, my bad, I made a mistake using the locator tool I was told to use at bplocator.lenovo.com, and thought the Centre was relatively close. Not quite. So, I called Lenovo CS again, and they issued me with a new case number, 40KWSYF, and said they'd send a box for return to depot. And within 2 days, Feb 2nd or 3rd, I got a Purolator courier return box. That's fast service! Pleased, I put my T400 in according to instructions, and I sent it off.
Fast forward to about mid-February. I called Lenovo CS, and apparently there was a delay - the depot needed a part that wasn't in stock. Fine, I know these things can happen - I'll wait.
Fast forward to March 1st. I talk to a Lenovo CS rep, and it appears that the part needed has arrived, and they've put a rush order to get the computer back to me. Great!
Fast forward to March 8th, still no computer. I talk to another Lenovo CS rep... strange, there's no update. The issue gets escalated to the Depot managers.
Fast forward to March 12th. Still no word on my T400's status. An email fron CS has been sent to the depot. Not even the CS reps know what's going on. The rep I talk to figures there should be a response by the end of the day.
Fast forward to today, March 13th, 4:50pm Pacific Time. I just finish talking to Lenovo CS, there's been no response from the depot. Apparently there's a part that they're waiting on for repairs, but there's no ETA on it. Is it the same part that I've waiting on all this time? Is it a new one? I don't know.
At this point, I've been told to send an email explaining my situation, and I've also been told to talk to Scott the next time I call CS on Monday after 3pm Eastern. I have to stress that the Lenovo Customer Support Reps I've talked to have all been very sympathetic and have been courteous, helpful, and professional - something I appreciate from having worked in Customer Support myself. But the bottom line remains: my computer's not back to me.
So, my questions to the community here: is my experience here typical? Is there any hope of my seeing my computer back, or even at least just the hard drive? I've used Lenovo computers for work for the past 7 years, and it was my good work experiences that led me to buying a Lenovo for home use. However, it's been a while since I've been without my T400, and I was hoping to get my taxes done on the computer too, since they're due at the end of March. I'll reserve judgement on Lenovo until I get my computer back, but at this point, all I can say is... I'm disappointed.
If you're reading this, I'll let you judge my experience for youself. I'll update my case as it progresses.
Thanks!
Moderator edit: Removed support contact private information, per the Community Rules.

Hi all,
So, an update with some good news: my computer is finally back!
After a total of over 40 business days (just over 2 months) I finally have my T400 back at home, working again!
According to the spec sheets, the repair depot had to replace: the systemboard/planar, display/LCD panel, LCD cable, PC card, bluetooth, and the inverter. BIOS/Embedded controller was also updated, along with the regular diagnostics to ensure everything was working properly.
I give Lenovo credit though: they got the final parts to repair the computer on Monday, April 5th, and shipped my computer back to me for the next day (today, April 6th). That's fast service, once repaired!
However, my case spans over 4 screens of updates and repair depot orders of parts.
Also, it took me over 10 calls to Lenovo's Customer Service, plus an escalation to a higher-level manager after 1 month had passed, to get progress updates and ETAs for repair.
Lenovo called me only once to give me an update, and that was the manager whom my issue was escalated to: all the other times, I called Lenovo for an update.
The story doesn't end here, however:
In talking to Customer Support, they told me that Sales might be able to sell me an extended warranty at a discount, given the issues I had. And indeed, after talking to Sales, they offered me a 1 year warranty extension at a price of just over $100 CDN, plus tax. This is a sale price, compared to the regular retail of $129. Unfortunately, they can't sell me just one month.
At this point, I refused their offer, and again escalated to a manager to request an extension of exactly 1 month on my existing warranty. I figure 1 month delay in repairs, that's plausible - crap happens, and while most repairs take 5-10 business days, I can understand it can sometimes go higher. Two months though.... My request for a warranty extension is being considered by the manager it was escalated to.
So, one last question for you folks reading this: am I being unreasonable, talking to Lenovo support one more time to request a 1 month extension of my warranty, given the length of time it's taken for repairs? I'll post the response Lenovo will give me tomorrow, as they've said they'll do.
One thing for sure: Lenovo's response will definitely influence my choice of brand from whom to buy a new computer (and it will influence the choice of my friends who've heard my issues, and maybe yours too). My particular repair problem may not come up often, but if it does happen to you, I'd be happy to know of your experience.
Thanks for sticking with me through the drama!

Premiere Pro CS6 importing/ audio and video problems

I recently recorded gameplay from my xbox, when i open this recording using windows media player it states that the video is 3 hours 30 minutes long, which is correct, when i then import this into premiere pro, premiere pro changes it to be 5 hours and 44 minutes long, when i then play this back it plays in slow motion and audio and video start to desync, i thought it may just be the source editor playing up so i made a clip and put it into the timeline and it still had the same outcome. The speed/duration are still on 100% so im not sure what to do, anyone have any idea as to what this is, or why it is happening?

What are the attributes of your PVR video...
specifically, is it variable frame rate?
Media file evaluation utilities:
GSpot
http://www.headbands.com/gspot/
MediaInfo
http://mediainfo.sourceforge.net/en
If it is VFR, Premiere no-likey.
Variable frame rate video problems:
http://forums.adobe.com/message/4897424#4897424
http://forums.adobe.com/message/4071506#4071506

Weird video problems with Mobility Radeon HD 4200

Recently pacman upgraded the video drivers for my video card:
[2011-04-17 12:48] upgraded xf86-input-acecad (1.4.0-4 -> 1.4.99_git20110318-1)
[2011-04-17 12:48] upgraded xf86-input-aiptek (1.3.1-2 -> 1.3.99_git20110318-1)
[2011-04-17 12:49] upgraded xf86-input-evdev (2.6.0-2 -> 2.6.0-3)
[2011-04-17 12:49] upgraded xf86-input-joystick (1.5.0-5 -> 1.5.99_git20110318-1)
[2011-04-17 12:49] upgraded xf86-input-keyboard (1.6.0-1 -> 1.6.0-2)
[2011-04-17 12:49] upgraded xf86-input-mouse (1.7.0-1 -> 1.7.0-2)
[2011-04-17 12:49] upgraded xf86-input-synaptics (1.4.0-1 -> 1.4.0-2)
[2011-04-17 12:49] upgraded xf86-input-vmmouse (12.7.0-1 -> 12.7.0-2)
[2011-04-17 12:49] upgraded xf86-input-void (1.3.1-1 -> 1.3.1.99_git20110318-1)
[2011-04-17 12:49] upgraded xf86-video-ati (6.14.0-2 -> 6.14.1-1)
[2011-04-17 12:49] upgraded xf86-video-vesa (2.3.0-4 -> 2.3.0-5)
[2011-04-17 12:49] upgraded xkeyboard-config (2.1-1 -> 2.2.1-1)
[2011-04-17 12:49] upgraded xorg-server-common (1.9.4.901-1 -> 1.10.1-1)
[2011-04-17 12:49] upgraded xorg-server (1.9.4.901-1 -> 1.10.1-1)
[2011-04-17 12:49] upgraded xvidcore (1.3.0-1 -> 1.3.1-1)
and now my video sometimes is glitchy. the output looks like this:
Also the computer crashes sometimes when I view a flash video in full screen or when I come back to the screen saver.
I think this has to do with the new video drivers but I'd like to know how I can fix the problem.
I don't know what other logs to provide as I'm pretty new (using arch for a 9 months) and I haven't had video problems before.
Last edited by sansar (2011-04-23 19:50:21)

I just noticed that the video card crashes after i come back from sleep mode.
Here's the kernel log: http://pastebin.ca/2050145
and the Xorg.log: http://pastebin.ca/2050146
For this crash, unlike the one that happens when I view a flash video full screen, the problem can be fixed if i log off and log back on.

ITunes / Quicktime Video Problems With Windows VISTA

I took up Windows Vista as soon as it was available and initially had no problems with iTunes. Then later, video clips (those purchased from iTunes and those I had converted myself) started stuttering / freezing and eventually crashing iTunes and finally I lost audio as well.
Ayyway to cut a long story short, I have uninstalled / re-installed Vista now about eight times for problems with installing drivers for USB devices (I've finally solved all these problems). After the last install the first program I installed was iTunes, tried video and it worked flawlessly. Then, each time I added a hardware device or program I would restart Vista and retry iTunes video.
The first item I added was a USB thumb drive (as I had on all previous occasions to take advantage of Vista's 'Ready Boost'). The thumb drive is a 'Sony 2GB micro vault tiny', and meets the transfer speed requirements for 'Ready Boost', as soon as I had set the drive up for 'Ready Boost' I started having the same problems with iTunes video and Quicktime.
Removed the thumb drive, restarted iTunes and had flawless video playback again. Have tried this over and over with the same result.
So my question is, has anyone else had video playback problems with iTunes / Vista and found similar problems. Trying to tie down whether this is a compatability problem with 'Ready Boost' or the thumb drive used. I have also tried a Sandisk Titanium 2GB with the same result.
I am not sure exactly how 'Ready Boost' works, I thought it added memory that was used to cache page files to the thumb drive instead of to the HDD making a faster seek /access time? Which should make things faster. Another article I read today was talking about 'Ready Boost' being an affordable extension to RAM, in this case I could understand the problem as I would think the access to a USB 2.0 thumbdrive would be slower than that to RAM.
Any help appreciated, but I guess my bottom line is anytime I want to watch video on iTunes, I just pull the USB thumb drive .
PC Pentium 4 Other OS Windows Vista Home Premium

I have the same stuttering video issues with iTunes and Vista. While I have used a thumb drive to transfer files (not Sony) I have not yet messed with Ready boost. I have seen several others complain about the video problem, perhaps they will chime in as well. Unfortunately, your solution doesn't work for me. I pretty much ignore iTunes, waiting for the next version (only god knows when it will be released).
I do have an external firewire drive connected, I'll disconnect later today and see if that has any affect.

G3 iMac video problems

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