Wen i download games/demos on my PSP from my computer it says that the it is "corrupted data How do i fix that?

I’ve put passwords on many different routers at home and work. I can also help you with the setup of the Xbox with a wireless password.
Method #2. Use a pass through 256 default factory WEP password encryption key that usually works for all Linksys, Netgear and US Robotics routers. I could post it here but I won't ;-)
Google for it. It works in 99% of all cases.

Mac Tod converter provides several optimized seetings for iPod adn iPhone.

Method #3. Install Kismet, Ethereal and Air Snare and hack your way through any network, protected, firewalled, encrypted or not (just kidding, ok?)
Steel
speed optimizwtion not required for vista. sometimes antivirus update, windows update eat up your internet speed. disable those and try. search for any spyware which share the bandwidth. use firewall software while going online.
Here's the link for the configuration.
I can help you with this.
Before I can help I need you to give me the exact model number of your Wireless Router.
1. click setup,
2.wireless setting
3.enable wireless
======Go to the Option where it says Wireless Security Mode
and choose the best that fits your case.
4- choose a security mode

Video converter is the easiest way to get your video in the format you want, convert video and audio to iPod, PSP, iPhone, Zune, Xbox.

5. type the password and retype it again,
6. and SAVE
If your computer is wireless Integrated then all you need to is connect it through going the going the control panel, if it works via plug only then buy a wireless usb adapter
If don't have one already go to you internet providers webpage and order router to allow wireless internet!
Oh c'mon girl just fire up your WiFi let it scan for unprotected hot spots around your area and "share" some of the available free bandwidth.
I suggest use a wifi Atheros N protocol card. You can buy it even in USB interface and them babies cost around $25.00 each.

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You see the old B, G protocol is very distance limited (~120ft)