Video freezes during playback

I have been having this same problem of the picture freezing and the audio continuing to play for months and have not been able to solve it.
the picture freezes on my external monitor, but not on the computer monitor. The decks that connect to the Sony monitor are the only things on the firewire. I am on OS 10.4.11, FCP 5.1.4, Quick Time 7.6. I have 4 external data drives in a FirmTek SeriTek/2eEN4 and a 320 GB drive in the computer, in addition to the boot drive. The RAM is maxed out at 1.5 GB in my G4 Dual Processor. I have trashed my preferences and even gone so far as to do a clean install of both the OS and FCP. I have been through the preferences over and over, but see nothing wrong... No luck.
It does not matter if I capture to the internal or external dives, the playback problem still occurs every once in a while. Even if I am only playing back a clip that has just been captured in the viewer and there is no timeline to overlap on the screen. I can stop, backup and play over the same spot just fine, so the problem isn't long frames in the HDV I'm capturing as DV.
Any thoughts?
Thanks,
Bill

Thanks Randy,
Yes, I have captured in DV, down-convert from HDV. The image, for the most part, plays on the external monitor, but occasionally freezes...while it continues to play on the computer monitor. this problem is getting worse over time. I've been trough all the usual suspects from overlapping windows & timelines through trashing FCP preferences and repairing permissions on the hard drive. I've even reinstalled my OSX Tiger and Final Cut (twice actually as at one point I lost my boot drive & had to replace it) I have two different decks, and it doesn't matter which deck the firewire goes to, the monitor freeze happens with either one. ( I have no problems capturing, by the way) Since this is the second HDV project I have had on this equipment and did not have this problem on the other project, I am beginning to wonder if this might be a hardware problem.
Any ideas??

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thejazzdiva wrote:
For the past 16 to 24 hours or so, I tried to watch several different shows on my TV using the OnDemand menu on my X1 box, the TV Remote app on my iPad or via the xfinitytv.comcast.net website, and the shows keep freezing within the first 10 minutes of play, and then one or more times during the remainder of the program. These freezes last from 5 minutes to over 20 minutes ( I am currently expereinceing one right now during the playback of Masters of Sex). I have paused, exited and returned, rebooted, unplygged etc.
Coincidentally, this entire week I have been experiencing intermittent internet outages as well. Not sure if they are related, but it is very frustrating when I am on a conference call or webex, and my phone and desktop drops from the meeting, especially when I am the host!
I have not had this issue before, and am thinking this is a capacity issues, since its is a holiday weekend and many folks are trying to do playback, and its just not enough bandwith?
I did not have this issue before when I was not on the X1 platform.
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