So........off to a ..well.. not so good start

[Ortnit]

1) I can't really help you with the problems that WinEQ2 caused you, as it didn't cause any problems for me.
I can tell you though that i play on Windowed Fullscreen (tiny windows bar on the top of the screen) on a 1920x1080 Monitor.
And afaik lots of people use WinEQ2 without any problems.
The file that is probably modified by it, is the eqclient.ini, so you could back it up before installing WinEQ2. To be safe i would just back up the whole EQ Folder on another drive or at least in another directory, so you dont have reinstall it all again.

It is actually a good idea to keep an "up to date"-copy on an external drive or another computer, because, yeah, getting EQ to run properly can be a bitch.
The upside is, you don't have to put any work into it, once it does, since there are no updates really, except for a few files provided by Project1999, if there is a patch.

4) There are no Serverwide channels on P1999 Blue. If you want to ask questions in game, you can use the /ooc channel.