ET - Lag spike on exiting room...

[mogliET]

http://img160.imageshack.us/img160/9568/20061007202234glidermt1.th.jpg (http://img160.imageshack.us/my.php?image=20061007202234glidermt1.jpg)
See lagometer in screenshot above.

I noticed today that on exiting the Guardpost in the (crappy) map Glider, I get a lag spike. Each time I pass through the threshold of the door there's a spike...
Anyone have any ideas why this is, and can I get rid of it?

I can produce my settings / specs if you want...

EDIT: Seems to happen on lots of other rooms in lots of other maps...

[JBRAA]

Yep. It is very easy to see when playing baserace.

You walk around in the tunnels for ever, and then when you go out, 10/10 times the lagometer get a big yellow "wave".

The yellow lag, is that client lag or cpu lag?

What is the blue lag btw?

[mogliET]

Were those questions directed at me, or about lagometers in general?

[Bravo]

I get this walking through the main door in radar, it's especially annoying when I am trying to jump on the little hill to the left, and I sort of hit a glass wall right at the entrance. It isn't every time, but it can be a pain when I am getting shot at :(