You never told us "it worked until I dropped it" or anything about it ever working proper. As such you have a warranty issue and should get them to fix it for free.
When my laptop is connected to the power supply it is unable to load web pages. The signal strength remains excellent, there is just "problem loading page". As soon as I unplug the laptop, everything works fine. I looked under 'Power Options' in the Control Panel, but there were no options there to help. I also reset the TCP IP settings, and still nothing. The device in question is a Gateway MX 6625 with Windows XP, home edition. Thanks for any suggestions.