I am one of a group of 8 who play in Casual, mostly 4 at a time MP pairs. If I create a table there is just one of us - same one every time - who never receives my invitation, even though he is shown as logged in. I've dbl checked the spelling, he logs out and in again, I reinvite... tried all permutations in vain. So another of the 4 has to set up a fresh table, and all works ok. I'm baffled. Can anyone explain how this happens, and suggest a remedy, please?