Today I received an e-mail from a friend on this site, and it showed he was on-line, so I clicked to instant message him..he was trying to answer, I could hear him clicking..but it kept showing.."waiting for his window to open"..Then after waiting a few minutes..I checked his profile..it didn't show him on-line, but I could hear him clicking as he was trying to get through...This has happened before too, once he was trying to get through to me, and when I checked, he was on my "blocked users" list..I had never blocked him, and no-one else has access to my computer, so I don't know why that happened..I unblocked him, and we were able to message then..Could someone look into this problem, please..as it is very frustrating..This is our easiest way of contacting each other , and both of us are concerned with this problem.