Minimizing/closing Party windows freezes my computer

[RitmoEnElCaos]

I have a brand new Dell 9200 1.8 Pentium M, 500MB RAM. Whenever I run Party or Empire and close or minimize any Party/Empire window (like lobby or table or hand history or even player notes), the entire system freezes for 5 to 30 seconds. Even the Task Manager freezes. I can unfreeze the box by hitting Function-F2, which turns off the wireless card, so it seems like it's related to some network activity. If I use the 10/100 port instead of the wireless, I still have the problem, even when the wireless is off.

Has anyone else seen this behavior? I don't have the problem with any other apps or poker sites.

Thanks,
Ritmo