Xchat Aqua refuses to open in the space I have assigned it to.
This bug appears to be reproduceable on any system. I have tested on my Macbook, and my buddy's Macbook Pro. Under the Mac OS X System Preferences, select Expose & Spaces. Now assign Xchat Aqua to open in any space other than 1 (Spaces must be enabled first). It will, without exception, open in Space 1.
This is an annoyance, as I must move Xchat to my preferred space every time I restart my Macbook. It does not affect stability, but no other application I run suffers this same problem.