mac os x lion 10.7.4 problem?

[kyle]

For whatever reason, I cannot get my password to work since I've updated my mac to lion. I know the password is not incorrect, and I have not been able to reset by any using any methods I've found online. Is there any advice anyone can give me on how to reset my password?

I have attempted using the install disk, and holding down such combinations as "option", "Command+S", and "C". I have also tried doing each combination without inserting the install disk. Sometimes nothing happens when I try these, and sometimes a lock comes up with a box below for a password. Thanks!

13 hours ago
- 3 days left to answer.

Additional Details
This is a video demonstrating what happens when I try to use the Command + R or similar techniques. I just don't know what to do next!
http://www.youtube.com/watch?v=GbcPPrAB35Y

[Bob]

Here is all the mac and apple help in one place... Hello, Ask Apple here for free 1-800-MY-Apple ,and check out the sites for more informaton http://www.apple.com/support/ and
https://discussions.apple.com/thread/246...0&tstart=0
http://www.facebook.com/pages/TheAppleGossip/...
http://www.apple.com/macosx/recovery/
http://9to5mac.com/
http://appleid.apple.com
http://www.apple.com/support/mac/facetime/
http://www.ifixit.com/iPad-Parts and Mac parts
http://www.apple.com/iphone/built-in-app...phone.html
Hey, I enjoyed your question, I have worked as a technician most of my life, I
hope I have helped you...
Good luck...

CompTIA A+ Certified Computer Professional