slow graphic card performance

[gmann1112]

this is my first post i am running a windows xp sp3 based pc that has a celeron d 3.20 ghz processor an msi ms-7033 915pm mobo with 2gig memory and no on board video. i purchased a pny gforce 8400 gs pci graphic card with 512mb ddr2 memory. all drivers and software are as current as i could get from their manufacturers
the system seems to be running ok with games such as half life and half life 2 but when i go to the demo programs from nvidia(graphic cpu manufacturer) they run extremely slow like one frame every couple of seconds .
i would like to know if this is a hardware conflict or is it something else?
the graphic card processor starts heating up when i even watch videos and runs between 110 and 120 degrees but normaly runs at about 95 at idle
i would appreciate any help on this issue

thanks

[KingPincer]

Try cleaning your video card. Sometimes too much dust causes some parts of the CPU to overheat. Hope this helps you my friend.

[gmann1112]

thanks for the reply
the video card is straight out of the box brand new

[x2543]

Try testing on a different computer to see the results. If same as main pc, then probably graphics card may be having issues.

[gmann1112]

hey guys just wanted to say thanks for the suggestions
i just found out that the problem is an issue between the nvidia demos and windows xp

thanks again