Ok, I may be able to help.
i crash, almost every single time i zone.
That is most of us atm. Some unknown item is causing issues while zoning.
i cant kill mobs with 4 chars because either one EQ window will close to desktop, or everyone will stop attacking and the whole screen freezes.
Right click the icon for EQ and select Properties. Select the Compatibility tab.
Then select "Run this program in compatibility mode for:" Windows XP (Service Pack 2).
Next pick Disable Visual Themes.
Lastly, 'Run this program as an administrator'.
char can move around but nothing happens.
This may be your client(s) going out of the sync with the server. In EQ, go to Options and then Filters. Turn off a good portion of them (unless, of course, you specifically need them.
I have the following on Show: Bad Word, Guild Chat, Group Chat, Shouts, Auctions, Out of Character, Spell Criticals, Heal Over Time, and Stun Messages.
All the rest are set to Hide.
Very last thing, if running MQ2, do
/unload mq2fps and then close client. Go to the right corner of your Taskbar (Start Menu), find the MQ2 icon, and right click. Select INI File. A text file will appear (in notepad most likely). Find the line under [Plugins] that says 'mq2fps=mq2fps' (or something very close). Delete that line, save the file, and close Notepad. Now go to the bottom, right click and pick EXIT on MQ2. Start MQ2 back up and get into game. That should remove the lagbomb addon.
-Hate