How to use IM in macintosh?

[aotsuki]

All my hardware works well, I can browse web but any IM I can use under windows never can be used in OS X.

 

I tried Yahoo messenger 3.0 beta2, Adium1.1.3, MSN 6.0.3, and iChat(use MSN and YIM account), but no one work, all will hang at login step.

 

Hardware:

Core2 duo

GA-965PDQ6

Geforce 7100GS(256M)

ALC888 audio

2G memory

320G SATA HD

Yukon Giga-bit NC

 

And I tried use the IM in parallels virtual machine(OS windows XP), all of them will work.

 

Any one can help me use them not in the virtual machine??