I have now completely resolved the issue. While trawling through old posts on this forum looking for some information on WinEQ2, I stumbled upon this thread:
http://www.project1999.com/forums/sh...d.php?t=134422
Had I found this before I would not have bothered you all with a number of posts of this issue but the post wasn't very helpfully titled, it only struck me a few minutes ago that it might even relate to my issue which is why I opened the thread.
Anyway, I altered both my computer's and EQ's resolution to 1260x768 and the game runs just fine using EQEmu to launch, no need to go via WinEQ2 anymore. Thanks to all those who offered solutions, I hope the above helps those still getting this message get in game, if you see Spots or Ipesh on send me a tell!