iMac 21.5" airport issues and graphics question

[Whimseh]

Okay, everything's been working fine (except for that annoying high-pitched noise) but recently AirPort or whatever all that is has been really, really annoying.

All throughout today and yesterday I've never had a good connection, I'm right next to my router (it's not a problem with the router) and when I'm connected via Ethernet it's fine but I can't always be connected like that.

I'll try loading a website then the whole connection drops, multiple times. And when it's fixed, it happens again. and again. It's really quite annoying.

Also, I know NVIDIA GeForce 9400m is a GPU and all, but is there any way to upgrade the graphics? 9400m is absolutely terrible. Horrible. I can't believe they even put them in there to begin with. My brother's $500 dollar laptop can almost do better.

 

[Hellhammer]

Does it do that when connected via Ethernet? Does other computers do that? Do you have another router to try it with?

The GPU is not upgradeable as it's integrated on to the logic board

 

[Whimseh]

Does it do that when connected via Ethernet? Does other computers do that? Do you have another router to try it with?

The GPU is not upgradeable as it's integrated on to the logic board

Aw that sucks, I'll be getting a PC asap.

and no, when I'm connected via Ethernet everything's fine. My brother has no problems at all when he's using Wi-Fi and he's got Windows 7.