Black Screen hang-ups in 6.0 update

[ajb20]

Its becoming more and more random now it seems. Just simply adding a mob does it now sometimes. However, 99% of the time when I get passed character select and hang on a black screen, it is only after I have put a mob on a grid into the zone and exited completely out of EQ and tried to come back. There was only 1 time that it happened when I had no mobs on a grid but about 50+ already when there was a mob on a grid. Also, after adding a mob to a grid I had a friend try to log in, and he also got stuck at black screen which he was having no problems at all before that mob on the grid was added. This is getting very frustrating

[Status] 789375 New client from ip:*.*.*.* port:1363 
Read group ID for 'Adam': 0 
[Error] HandlePacket() Opcode error: Unexpected packet during CLIENT_CONNECTING: 
 opcode: 0x037f, size: 0 
Unknown opcode: 0x01e5 size:8 Client:Adam 
   0: 0A 00 00 00 D2 3E 73 7D                            | .....>s} 
Dropping client: Process=false, ip=*.*.*.*, port=1363

Same exact thing that zone.exe gives me each and every time a player hangs at the dreaded black screen :(