My internal hard drive isn't being recognized on my macbook pro but when I put the HD in my Mac Pro (desktop), the desktop computer recognizes the HD. When I insert the installer CD on my laptop, it also doesn't recognize my hard drive. Please help!

My internal hard drive isn't being recognized on my macbook pro but when I put the HD in my Mac Pro (desktop), the desktop computer recognizes the HD. When I insert the installer CD on my laptop, it also doesn't recognize my hard drive. Please help! Thank you!
I've also been getting an image with the folder and question mark. I've tried everything on the apple support page but it doesn't seem to work either.

Well, I tried all of your suggestions and they didn't work -- no surprise because I was trying to backup to my external c.d. disk. Duh! The application for the home is in the mail.

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Impossible to answer with information provided.
Allan

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Thought you could use this info about getting FireWire to work!
First, you should always Repair Permissions in Disk Utility before and after any update; I would do that now. If you installed your update with FireWire plugged in, your Mac may not recognize it anymore.
Try resetting your FireWire ports by disconnecting all FW devices, shut down your Mac and unplug it from AC power (wall socket) for 30 minutes. plug it back in and try FW.
If that did'nt work, download the combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try. Yours is the 10.4.6 Combo update. Others reading, download the Combo that applies to your system.
If that still did'nt get it Zap the PRAM. While restarting Mac hold down the following key combo Command-Option-P-R. Keep holding those keys down till you hear the second start-up chime, then release.
For those of you with Macs that are not PowerBooks or iBooks, a bad internal battery can cause FireWire to not be recognized, so make sure it's good! Also, here is Apple doc.#88338 on getting FireWire to work.
Good Luck!
Cheers!
DALE

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I have an extrenal drive I used to back up my dvds for faster viewing and the drive is going out I think. It will disconnect midway through movies, when uploading or downloading to/from it it will sometimes just disconnect itself. about 75-80% of the time its plugged in it wont show up. I can't attempt to transfer more than about 3 gigs of information or else if ejects itself, and it won't even show up in disk utility.
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OK, so are there any volumes listed for that disk in Disk Utility? And how does it not allow you to repair the disk? Is the option grayed out? Try clicking on the disk AND the volume and comparing the options for each.
For example:
149.1 GB FUJITSU MHW2160BHPL Media
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186.3 GB Prolific PL3507 Combo Device *(On this disk…)*
|- Time Machine *(…here is my Time Machine volume.)*
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Message was edited by: Sidney San Martín

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Hello,
I have a Glyph external hard drive that, all of a sudden, is no longer being recognized by my computer. I does not show up in the system profiler nor in disk utility. It connects using firewire. I have connected my digital camera via firewire recently and it was recognized. I have also connected this hard drive to another (newer) mac and it has no trouble recognizing it. So it's seems that it is not the firewire jack in my computer that is problematic nor is in the actual cable. Any suggestions? I don't even know where to start as a i have nothing to work with.
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Message was edited by: governorsir

hello,
as recommended in the link that was referred to me i have tried zapping the PRAM and
resetting the firewire ports. I was unable to turn off the spotlight indexing on the drive because it (the external hard drive) is not being recognized by my computer. Resetting the NVRAM does not seem to apply to my situation.
Still no change.
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See
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