Ibook Indigo 466SE Touchpad unresponsive when power adapter plugged in.

I've had this power adapter for about a year now (after the OEM adapter was damaged). I mostly use this as a backup to our desktop or when traveling (which is rare due to the economy). About two weeks ago I started to notice that the touchpad was sticky. I also noticed alot of interference when I hooked it up to the TV while the power adapter was attached.
Should I be worried? Do I need a new adapter (or an OEM adapter)?
Any help would be appreciated, I love this limited buy still quite functional old ibook.

When you go to the Support in the main webpage, you select iBook, and in the left side there`s a lot of useful articles, I found this that could be related to your trackpad problem. Check this: http://support.apple.com/kb/TS1449
it says this: {quote} Apple has had some reports of this behavior related to power supplies made by a third party company. If you are using one of these power adapters, unplug it and try running from the Apple battery to see how the trackpad behaves. Also try using the Apple AC adapter instead of the third-party AC adapter. If the trackpad behaves normally while running from the Apple battery or adapter, there is most likely an issue with your third-party adapter.{quote}
You can also check the trackpad cable (you need to remove the RAM shield)

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Ibook Indigo 466SE Touchpad unresponsive when power adapter plugged in.

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