I haven't had any, and they not showing up on my error logs...so am struggling to replicate the problem.
TCH is having some Timeout errors when posting something.
I'm guessing this could be down to a mod I've installed, although they have all been uninstalled now, except for the Portal and Blog.... I've optimized and checked the DB's, and made sure all the file permissions are correct.
Is Anyone else having an issue?
Does it happen if you use a different browser?
What OS are your using?