Has anyone else experienced this: everything I type in the Heroes of Might and Magic Online (Heroes Online) chat is duplicated, even though other users appear normally... It looks something like this:

nick: hello
nick: hello

P.S. It doesn't really bother me, but I've noticed that lately, it's been happening more often, and I've also had a couple of instances where data wasn't sent to Heroes Online after a victory/defeat, or the game simply crashed with a critical error...
As for major changes, I installed a different antivirus on my computer (Kaspersky 7.0? I used to have Nod32).