Eu recomendo PowerStrip , uma das melhores soluções para ambientes com vários monitores. Você obterá muito mais da sua configuração, especialmente porque está usando adaptadores de vídeo diferentes (o que, suponho, é a causa desse hickup).
PowerStrip provides advanced,
multi-monitor, programmable hardware
support to a wide range of graphics
cards - from the venerable Matrox
Millennium I to the latest ATI Radeon
HD series. It is the only program of
its type to support multiple
graphics cards from multiple chipset
vendors, simultaneously, under every
Windows operating system from Windows
95 to the x64-bit edition of Vista. A
simple menu that pops up from the
system tray provides access to some
500 controls over your display
hardware, including sophisticated
color correction tools, period level
adjustments over screen geometry, and
driver independent clock controls. A
powerful application profiler can
detect when programs are launched and
respond by activating specific display
settings, gamma adjustments,
performance switches and even clock
speeds - returning everything to
normal when the program closes.
In-game gamma hotkeys let you light up
the darkest hallways during game play,
and hardware control over refresh
rates - with floating point precision
- ensure you're never stuck at just 60Hz no matter what OS you're using. A
quick setup wizard gets you up and
running with minimal fuss, extensive
context-sensitive help is available
for all controls, and live updates are
supported to ensure you're always
running the latest release. Finally,
an assortment of system and
productivity tools - among them,
extensive diagnostics, PCIe and AGP
device configuration, EDID decoding,
desktop icon management, a system idle
thread, Windows resource monitoring,
an anti-burn-in orbiting option,
physical memory optimization, an
on-screen display, and the most
advanced monitor support in the
industry - round out the compact 1MB
package.
PowerStrip é shareware ($ 29.95), experimente antes de comprar.