Keyboard/Trackpad/External Mouse Not Responding

Question

I turned my computer on this morning to find the cursor stuck in the top left corner of the screen. I've tried resetting the PRAM, and the smc, and putting minor pressure on the ribbon under the battery all to no avail. It seems like this is a software issue because I can hold down command+s to get to single user mode, but once at the text prompt the keyboard is non-functioning. As well I can hold shift and boot into safe mode, but again, once it reaches the login the keyboard is no longer functioning. I tried plugging in an external mouse but this did not work. When I use a leopard boot cd, once to the install I can use the trackpad and keyboard. I'm frustrated and stumped.

Answer 1

See KB Article: http://support.apple.com/kb/TS1248 Intel-based Apple Portables: Troubleshooting unresponsive trackpad issues
"When I use a leopard boot cd, once to the install I can use the trackpad and keyboard."
You may have a hardware problem. Take the MBP to an Apple Store or an AASP for them to check it out. If you have AppleCare, call them.
"It seems like this is a software issue"
Disconnect all devises from your MBP if you have not already done so when troubleshooting.
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