Monitor less resolution running OSX?

Hello there!
I wondered if anybody can explain to me the following oddity:
Under 9.2 the maximum resolution of my monitor is 1280 x 1024 (85Hz) pixels --
I just found that under 10.4 it's just 1152 x 882 (95 Hz).
Hm, how can that be?
Best,
Cora

OS X only shows the "Recommended" resolutions. SwitchResX will show you all the resolutions available.

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How to know if this computer can handle a certain monitor's resolution?

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Chipset Model: GeForce FX 5200
Type: Display
Bus: AGP
Slot: SLOT-1
VRAM (Total): 64 MB
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Device ID: 0x0321
Revision ID: 0x00a2
ROM Revision: 2060
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Monitor Stand
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Interface
Interface type:VGA 15-pin D-sub type/DVI-D type
Power
AC:Input: AC 110~220V, 50~60Hz; Output: DC+24V, 5.0APower Consumption:135W max., 2W Power Save Mode
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VESA
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http://www.macupdate.com/info.php/id/12381/temperature-monitor
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http://bjango.com/mac/istatmenus/
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Monitor less resolution running OSX?

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