hey,
this is my first post too =P i was just gonna go around reading everything and planning on not posting XD haha but then i saw this and this was kinda like what happened to me the past two days. sometimes when you turn your firewall or anti-virus back on, it'll scan your computer and delete the galaxyms client, but leave like the shortcut there if you're like me and you a shortcut on your desktop. But yeah try re-downloading the client and if that doesn't work then idk =( sorry if i couldnt help you though and gl, i hope you can get back on soon =)