Quicktime (and iTunes) skip if uploading

ok. This is a little weird. For the past several months, QT and iTunes have trouble playing any format audio or video if I am uploading. For example, if I send an email with a bunch of pictures, itunes or QT will start stuttering. Processor usage doesn't increase, and it really shouldn't. But when the upload is done, everything returns to normal. If I use something that is not dependant on QT (like VLC or mplayer) everything works fine.
repair permissions didn't change anything and this was before I installed divx 6 and flip4mac free.
Any ideas or anyone else come across this?
DP800 MDD. plenty of RAM and HD space.

are you sure you have completely uninstalled quicktime? there is a problem with a file in the qt folders that cannot be deleted. sometimes it makes it imposible to uninstall completely, weather it is tried with control pannel or the new installer. to be sure QT has been completely removed you need to check "program files\quicktime". if there is a folder for quicktime and it still has a file (or several) in it, it won't allow the complete uninstall of the program, which in turn makes it impossible to install the newer version. If you have a quicktime folder then follow my quoted instructions below to reinstall quicktime. once you have reinstalled QT, you can reinstall/update itunes. hope this works for ya
nathan
{quote:title=Thermos017 wrote:}
the problem is caused by a file that cannot be deleted in the quicktime folder, and is very easy to fix.
if you search for "CFCharacterSetBitmaps.bitmap" or navigate to "C:\Program Files\QuickTime\QTSystem" you will find the file. as i said, it cannot be deleted, however it can be moved to another location on the c drive. move the file to your desktop or anywhere outside the program files folder, then run the install again. Be sure you cut/paste the file to another location. drag & drop will only copy the file, and will leave the problem file in its original location.
if the install still fails, then you'll have to double check that the file mentioned above was not regenerated in the install attempt (repeat instruction in paragraph2), and remove the QT program through control panel. once the file is removed, the control panel can remove the whole program, then the reinstall will work just fine. {quote}

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I recently bought an ipod touch 4g and realized that I needed itunes to activate it. After downloading itunes it wouldn't install, no error messages or anything, when I click on the installer it just doesn't do anything.
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I appreciate the quick response, thank you for that.
One thing I did try was windows cleanup utility and searched through the program files for all apple software, but had none. I even deleted the temp files on my computer, and on my internet browser, but nothing happened.
One thing that I didn't think of was deleting the installation files in my downloads folder, pretty silly of me but I didn't think it would make a difference. I also spent about 2-3gig on downloads yesterday and didn't want to delete the files but as a last resort I did and emptied my recycle bin, then downloaded a fresh copy of Quicktime and finally it installed!
Now I am in the process of downloading a fresh copy of iTunes, the download hasn't finished yet so I haven't had a chance to install it yet but I have a much better feeling about it this time after deleting all the old installation files from my downloads folder. If Quicktime worked after that, I am sure iTunes will.
I can't believe it was something so simple as deleting the installation files in my downloads folder and emptying the recycle bin. I had seriously gone through my entire computer looking for any little file that was related to Quicktime or iTunes. I didn't even think of the two most obvious places. I spent so much time and credit downloading multiple files and my computer even got a virus when trying to download a copy from an unauthorized source, I had no problem getting rid of the virus, but struggled with Quicktime and iTunes, that is why I got so frustrated! I feel like an idiot now :-P
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Interesting. In that case, the errors are probably being caused by the absence of the two files I mentioned earlier. Haven't seen one of those for a while.
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I commited suicide, i guess, by creating a "custom" application folder, moving all system applications from their original location to another folder, named by me "aplications", and deleting the original empty aplication folder.
Don't ask me why , i still don't get it ......:-(
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I have installed like 10 non systen aplications after that, and i'm really out of time, do you think i'll have to reinstall the whole system again or there's a workaround to make QT and iTunes back?

If you deleted the "original empty application folder," how did you then return items to it? Did you create a new Applications folder yourself? Or what?
At the root level you should have something like the following:
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Library
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Users
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Owner: system (locked)
Access: Read&Write
Group: admin
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Others: Read only
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http://support.apple.com/kb/HT1925
Vista
http://support.apple.com/kb/HT1923
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Restart you computer
Install the stand alone Quicktime and check if it starts.
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Why can't I install or reinstall Quicktime and Itunes on my computer.

Refer to yhis article:
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926

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Hi Mylenium:
Just as an additional info, when I stated "Apple Forum" I was referring to a suggestion made and publish there by one of the Apple Support guys.
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It's not fair for Apple to produce a 5gb upgrade with no option to get it on CD instead of download. Obviously their own servers cannot handle the demand. The blogs are littered with complaints - not just one ISP but many.
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Please change this for the next update.

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Hi,
I am experiencing something extremely weird, and extremely frustrating...
What I am experiencing is that after I've been using my system for a while, I will launch quicktime, and I will get the spinning ball forever.. If I launch iTunes it will just bounce on my dock forever and not launch.
Then I have to reboot, which is sometimes impossible to do, so I will have to manually tell my system to shutdown via the terminal.
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... So I thought it was perhaps something that I was doing (applications that I was running, websites I was visiting etc.), but now I have evidence that it's not. Which is even more confusing. Last night, a friend wanted me to pull up something on quicktime-- I got the spinning ball.. Said "ugh, I don't understand what is up with my system". Clicked restart.. It wouldn't restart.. lauched terminal.. sudo shutdown -h now... Ok.. it's off.. turn it on.. Launch quicktime.. hooray.. there's the video..
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Welcome to Apple Support Communities
1. That's a risk, and more in a MacBook Pro, that has got everything soldered except the hard drive and memory.
2. If you want performance, buy a SSD. It will get the best performance but they are expensive, so you should consider the option to buy a SSD with a small capacity to store OS X and applications and an external disk for other data.
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doublechecking something here. have you tried the additional suggestions at the end of the following document?
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Quicktime (and iTunes) skip if uploading

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