Ah well, hopefully this will be solved...
Codex` also found out that you only see that error, but in fact it can be a whole other quit reason that you have... For example; he made himself quit thanks to a Excess Flood but on his screen he quit because of the software caused connection abort reason... So maybe you do quit for a normal reason, like connection reset by peer or something, but mIRC gets the wrong disconnect reason and gives that SCCA bug... Its just a guess... Btw, hi Codex` smile and tnx for telling me...