[TxMt] 'Warnings' and 'Errors'

[plastichairdoo]

hello all - I'm pretty sure I asked this a few months ago but I just can't seem to find the email or the answer!

anyway, I'm just wondering about the small tool-tip type notification of 'Errors" and "Warnings" that I get when I save an HTML page where something might not be totally kosher. 
is there some way to see these errors & warnings? some kind of log file? I'd love to know.

thanks.

bennett