Did (any of) you look at the page I linked to?
The only password box that pops up when you double click mIRC's icon is the one that is set in mIRC options. mIRC does not randomly set this, so either you or someone else with access to your computer set it. The page I linked to explains how to remove it by editing the registry. I would suggest that being the only way you do it.
DaveC, there is an 'Edit' link to edit your posts
Regards,
