DVD drive in boot selection list but not booting?

I bought a second-hand Lenovo T400 which has newly-installed windows XP OS. I want to change my OS to Windows 8.

I inserted a windows 8 installation dvd.

I tried setting up DVDRamSomething as first in boot priority, but it starts up in WinXP. Next, I tried manually selecting DVDRamSomething as temporary boot device, but it also starts up in WinXP. I don't know any possible problem.

Can the Lenovo Yoga Pro 2 Handle 3200x1800 Resolution?

My sister wants to get the Yogo Pro 2, and I'm a computer enthusiast so its basically killing me right now. Problem is I noticed that the system has a 3200x1800 display and only has an Intel HD 4400 GPU. This GPU was built for typical 1366x768 resolutions, and its rather dated. I can't possibly see this computer performing well with such a low end GPU and such an outlandish resolution, even though she isn't doing anything particularly demanding on it. If you do the math 1366x768 is 1 million pixels while 3200x1800 is 6 million pixels. Therefore the higher resolution has to render 6x as many pixels. In a couple of years when the software is updated I don't believe the system will be performing well at all. Does anybody have a Yoga Pro 2 or have more information on low end integrated graphics on near 4k resolutions? I just can't fathom this being possible, but I don't own one so I don't know.

I understand that you can turn the resolution down, but that just defeats the purpose of having a nice display, plus I'm not sure if changing the main resolution would always take into effect when third party software is used.
Thank you.

Added (1). Also from what I've noticed Lenovo is very late when it comes to updating hardwar (particularly CPUs). Come June when the Broadwell series is released will the Yoga get Iris Pro Graphics. She needs the computer by August so she can't wait too long.

Everything on my computer constantly crashing?

For the past few weeks all the games and web browsers on my computer have been constantly crashing, and the Adobe Flash Plugin, but the Adobe Flash Plugin has been constantly crashing for many months. I use Firefox, and it's been crashing around ten times a day. So a few weeks ago when everything started crashing, I went to an MMORPG other than the one I usually play, and it started crashing a ton too. And, League of Legends has been crashing occasionally (though only one time has it been during a game) for the past few weeks also. This computer is I think less than a year old. It's Windows 7, Lenovo. As a matter of fact as I was typing this Firefox crashed yet again, and I had to retype the whole thing:/ This computer has Norton Antivirus and I've run scans several times to no avail. What should I do?

How to remove that yellow exclamation mark from my LAN connection notifier?

I'm using a Lenovo G510 notebook. It has a Qualcomm Atheros AR8172 ethernet controller. Recently, I updated to windows 8.1. As my college provides a proxy server, I had to exempt the windows apps using appcontroller loopback and use ccproxy to use the windows store for downloading the 8.1 update. But after updating, the LAN notifier started showing the yellow exclamation mark even though my net is working as I type this. But the taskbar notifier says no internet access. I've already tried ipconfig /all and flushdns. I've also installed the driver for win8.1 after uninstalling it. I tried exempting and changing the regedit like before. I tried configuring the ipv4 switching it from dhcp to static back and forth.

But the yellow sign won't go and thus the windows store won't open. Not only windows store, the other apps like travel and mail are also not working. What should I do to reopen my apps over proxy like before?

Can a Lenovo Y410P run Saints row 4?

Processor
4th Generation Intel Core i7-4700MQ Processor (2.40GHz 1600MHz 6MB)
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Operating System
Windows 8.1 64
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Display
14.0" HD Glossy with integrated camera (1366x768)
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Graphics
NVIDIA GeForce GT755M GDDR5 2GB
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Memory
8.0GB PC3-12800 DDR3L SDRAM 1600 MHz
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Hard Drive
1TB 5400 RPM

Can i game with these specs?

I'm getting a Lenovo G510 and want to know what kind of gaming i can do on it. I know i can't play games like battlefield or something. I will only play once in a while. I like games like DayZ, Tf2, and gotham city impostors. The specs are
4th gen intel i5 4200M Processor. It is a 2.5 ghz processor that goes up to 3.1 ghz with the intel turbo boost.
6gb of DDR3 RAM
Intel HD 4600 graphics