IMac won't recognize Maxtor OneTouch 2 Hard Drive

I've been using a new Maxtor hard drive to store video for use with iMovie. All was working fine and I was able to store and recall video several times from the drive. Then the iMac stopped recognizing the drive. I've downloaded and installed the newest driver from Maxtor, fixed permissions and deleted the two extensions as recommended by Maxtor on their website. System profiler recognizes something is connected to the Firewire, but can't recognize it - and it does not even show up when using disk utilities. The drive seems to spin up fine when I turn it on. Only thing I notice differently on the drive itself is that the blue one-touch button used to blink by alternating between the top half and bottom half. Now it blinks faster and does not alternate between top and bottom. I don't care about recovering the video that's on the drive - I can replace that. I just want to know if there's a fix - or if it's just a bad drive. Any suggestions?

Came home and my computer was off after leaving it
on. Rebooted and now the keyboard won't do anything,
the ext. hard drive won't start. I can't insert the
repair disk because the keyboard won't operate.
Hmmm, what do you think I should try?
hanks,
Bill
imac flat panel
  Mac OS X (10.4)  
If one of you finds a solution for this problem, please let me know. I have exactly the same problem
Hans
iMac intel   Mac OS X (10.4.10)   Boot Camp
MacBookPro   Mac OS X (10.4.8)  

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