Hi!
I have similar problem: mouse cursor lost on Windows 8.1.
Server: Linux 3.13.0-26-generic #48-Ubuntu SMP i686 GNU/Linux
Client: Windows 8.1, NoMachine 4.2.21 – 4.2.23
Problem was found today, shortly after windows was updated (KB list below).
Things I’ve tried so far:
- disable hardware acceleration;
- change mouse cursor theme;
- change encoding codec;
- change client OS to Windows XP SP3;
- updating NoMachine to 4.2.23
None of this measures were effective.
Installed updates (in time stright before problem find out):
KB2926765
KB2965065
KB2955164
KB2931358 (IE11 update)
KB2954879 (.NET 4.5 security update)
KB2958262
KB890830 (definition update)
KB2953522 (IE11 update)
KB2957151 (IE11 Flash update)
KB2956575
KB2931366 (.NET 4.5 security update)
KB2939153
KB2950153
KB2920189
KB2542054 (VS Express 2010 update)