I didn't do anything special, just held my att combo (bstep > dark sight > ass) and then dced within the first 2 minutes. My other two clients (bs and mage) were also inside and didn't dc.
Confirmed: HD Client for my hero DC'd into a black-unresponsive screen. 800x600 clients were still there no DC after my hero DC'd. Careful when bossing!
I have had zero success on the HD or 800*600 client in Zakum and Krex. Over about 10 attempts the DCs happen either when boss is summoned, when I do my first attack combo (Bucc barrage+demo, shad DS-Assass-bstep), or on phase transitions, mostly arms to body and 1st body to 2nd body. Very frequently Zak body will have graphical abnormalities that GFXing won't fix.
