After Software Update 2007-004 airport card stopped working after wakeup

Hi,
I have a powerbook G4 - DVI running 10.3.9. After I have installed Software Update 2007-003, when my computer goes to sleep and then wakes up, airport card stops working. I had to open the back of the computer, unplug and plug the airport card, then it starts working again. But next time the computer goes to sleep, it stops working again.

Does anyone have a similar problem? Any work arounds?

Thanks in advance.

Also following is the logs from Software Update. Looks suspicious:
Mac OS X Version 10.3.9 (Build 7W98)
2007-04-28 18:56:03 -0400
2007-04-28 18:56:03.190 loginwindow[181] FSResolveAliasWithMountFlags returned err = -43
WirelessScan timeout waiting for first scan result
WirelessScan timeout waiting for first scan result