Have you got encryption switched on at the router? Is the router broadcasting its SSID (the name - mine shows up as Netgear)? Can you see any other networks - your neighbour's for example? And this might sound obvious but do you have to turn on the wireless card in the laptop?
On games, I'm guessing as I haven't Googled the specs of your laptop but I suspect it will have integrated graphics, not a separate graphics card. That means it shares the system RAM with the graphics. Most laptops aren't much good for gaming - if yours has integrated graphics, you can pretty much forget about playing games.
On the screen, I dunno, but some laptops really don't like you shutting the lid before the computer is properly shut down.
Finally, next time you post a help thread, could you give it a more descriptive title? Something like "Problems with my new Packard Bell laptop" would have done for this thread - it gives people a clue what you're asking for so that experts can quickly spot your thread and those who know diddlysquat can move on quickly to something else.