UNIX PC User Agent weirdness?

[Lenny Tropiano]

Strange thing happened a while ago, I spawned a "user agent (ua)" process
to do some work.  I returned to the window with my shell, and the user
agent stayed idle.  About 5 minutes later I noticed the machine running
VERY SLOW.... then I did a ps and the ua process had 30 seconds of CPU
time and it was gaining fast...  I killed the process and the machine
returned back to normal speed.  Why did this happen?

						-Lenny
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