For reference, I run a Synergy 1.4.2 server on Windows 7 x64 with one CentOS 5.5 Linux client. Most mouse and keyboard functions work exactly as expected. The following is an exception.
Copy & paste from server -> client fails under certain conditions. All text copies done on the Linux client seem to work (I can paste text into Windows). The reverse is not quite true. When running Synergy as a user with Admin privileges, text copies on the Windows 7 x64 server appear to work from all programs (I can successfully paste the copied text on either machine). When running Synergy as a service (started from services.msc), text copies on the Windows 7 x64 server appear to work from all program except Firefox. Specifically, in service mode, when I highlight text in Firefox and do any of (a) Edit -> Copy, (b) right-click -> Copy, or (c) Control-C, I CAN paste the text into any other program on the Windows 7 server but cannot paste this text onto the Linux client. This only occurs with Firefox.
As a workaround (still in service mode), I often open a text document in Notepad. I copy text from Firefox and successfully paste it into Notepad. I can then copy the text from Notepad and successfully paste it on the Linux client. Again, other programs besides Firefox do not exhibit this behavior (I.e., I can copy/paste from Google Chrome without issue). And again, this issue only occurs when the Windows 7 x64 Synergy server is started in service mode.
Has anyone else experienced this same phenomenon? Any and all comments or suggestions are welcome.