I'm running Ubuntu 9.10, here's what I get when I try to launch ZSNES through the terminal:

Code:
Starting Mouse detection.
Unable to poll /dev/input/event7. Make sure you have read permissions to it.
Unable to poll /dev/input/event6. Make sure you have read permissions to it.
Unable to poll /dev/input/event5. Make sure you have read permissions to it.
Unable to poll /dev/input/event4. Make sure you have read permissions to it.
Unable to poll /dev/input/event3. Make sure you have read permissions to it.
Unable to poll /dev/input/event0. Make sure you have read permissions to it.
Unable to poll /dev/input/event1. Make sure you have read permissions to it.
Unable to poll /dev/input/event2. Make sure you have read permissions to it.
ManyMouse: 0 mice detected.
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  129 (XFree86-VidModeExtension)
  Minor opcode of failed request:  10 (XF86VidModeSwitchToMode)
  Value in failed request:  0xae
  Serial number of failed request:  125
  Current serial number in output stream:  127
Any help is appreciated.