What does the medic gun beam thing look like for everyone? My brother and I get very different visuals, despite using identical settings. He's using an X800 Pro, and I'm using an 8800GTX.

http://menkey.shackspace.com/x800pro.jpg
http://menkey.shackspace.com/8800gtx.jpg

It's sometimes pretty hard for me to tell who I'm healing when there are a lot of people in close proximity. It's also not terribly obvious when the healing stops due to the target going out of range. No such problems on the other machine. The teleporter effects also differ in the same way, but that doesn't really matter.

So, is this an Nvidia vs ATI thing, or have I broken something?