Asus w/Intel Pro/Wireless 2100 3B pain

Archived from groups: alt.internet.wireless (More info?)

Hi,

I'm using Windows XP Pro, and until recently I've been using an
external wireless adapter since I never got the built in Intel up and
running. The problem is that if I enable the Intel adapter then some
sort of prosess (not visible in the taskmanager) starts using 15-25%
cpu time and the machine lags and becomes unusable.

Then, yesterday; when I ran a XP reinstall (upgrade) the Intel card
suddenly startet working flawlessly, controlled by the Intel Proset
software. But the upgrade didn't take care of my other problems so a
full reinstall was called for, and then again the Intel adapter is
useless.

Where do I start debugging this hassle?