Two of us did; to no avail unfortunately. Thanks for the suggestion.
Have you experienced something similar, and if so, did the re-install help for you?
yeah I remember after a patch some while ago I had a dumpfile error in every match loading screen (even if I just wanted to watch a live match in observer mode)... I think first I tried verifying my local files, which didnt work. Then I re-installed and it was working again