Epson 1815p - PowerLite XGA LCD Projector Product Support Bulletin page 3

Fixed error message displayed by the NVIDIA utility
Failure Symptom
When starting Quick Wireless/USB Display/NS Connection on a PC with
the built-in NVIDIA graphics chip (ex.ThinkPadT61 NVIDIA Quadro NVS
140M/NVIDIA Quadro FX 570M Display Driver), the NVIDIA utility
displays consecutive error messages. As a result, some PCs will
experience a lock-up.
Countermeasure
Hardware acceleration level is set to 3 when Quick Wireless/USB
Display/NS Connection are being used.
Limitation
By setting hardware acceleration level to "3", the mouse cursor flickers
more visibly than the setting of "None". This symptom can be avoided by
unchecking the box for Transfer Layered Window on the Adjustment
performance tab in the Set Options window of NS Connection.
Note: When NS connection is being used, and the hardware acceleration
setting is changed manually, at next startup, NS connection starts with
the same setting level of hardware acceleration.
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PSB.2009.06.002