Running fine on a PS for me with my Pagans and Orcs. A few tips:
1. In Windows 7 I have to run it as an Administrator (right click on it and choose Run as Administrator).
2. Run the bot, start Shaiya & log in.
3. In the Hotkey Bar #1 place an attack in position #1. (for my Pagan I use Firewall, my Orc uses Frozen Ice.)
4. I have discovered that Hotkey position #6 is also activated less frequently. (My Pagan has Fire Thorn and my Orc has Frost Barrier.)
5. Use F1 to start, F2 for pause (you may have cached items waiting to be processed), F3 to quit.
I use it for dudgeon farming, toons standing still and waiting for aggro to bring mobs to them. Melee toons might want an attack in position #1 and maybe a heal or buff in position #6.
-MatRat