[CentOS] iwl4965 causes soft lockups

Hi all,

Annoying issue.. my ThinkPad T61 has an iwl4965 wireless card.   When I 
have the wireless switch on, I experience a lot of issues.. system keeps 
freezing..unfreezing..freezing..etc.

Sometimes, a soft lockup is logged to /var/log/messages.

psmouse.c also sometimes throws an error saying the mouse lost 
synchronization.

Obviously, this is causing the system to freeze for a sec and throws 
everything off.

This is the case with both iwl4965-firmware ver 228.57.1.21 and 228.57.2.23.

Any suggestions?  I am not able to use my wifi :(

Other info:

CentOS 5.3 -  2.6.18-128.7.1.el5 (also happens with 2.6.18-128.el5)
x86_64


Thanks in advance for any ideas.

Ryan