strange things...

[disappointed]

hi,
i have replaced my s3 savage4 display adapter with nvidia riva TNT ...i have intel pentium III
and creative soundblaster audioPCI , 800 MHz processor speed....then i downloaded the latest driver
for the nvidia card from nvidia.com...and installed it....then i tried a game called
EMPIRES:Dawn of the modern world by activision ,which didn't work on my s3 adapter(the computer
reboots after entering the main menu),anyway..the game successfly worked with nvidia adapter..
but when i tried to run empire earth by sierra ,which is older and needs less requirements,
it didn't work...my monitor switched itself to standby mode without loading the game menu??

so what would be the problem??

thanks...

[Raptor]

Did you properly install the drivers?

[disappointed]

i didn't actually uninstalled the previous driver ..i just
pluged the new adapter and downloaded the driver
from nvidia.com....should i completely uninstall the
previous driver??

[Raptor]

I suggest you uninstall both drivers. Run a program such as Advanced System Optimizer V2 to properly clean your registry and redundant files caused by the drivers and other programs and then download the latest updated driver from the Nvidia website.

[disappointed]

i will do it...but it is strange that the other game worked
perfectly although it needs more requiremnets

[Raptor]

Perhaps because the drivers for your other videocard were installed first?

[disappointed]

well...Raptor..thanks..
your advice actually solved some problems like
completely cleaning the PC from any registry related  to
the older adapter so that the new one works perferctly..
....however ,it didn't solve the main problem..i mean empire earth didn't work and the same
problem happened again...but the cause for this problem
turned out to be something different than the registry..
it is because of the old monitor that i have!!! i didn't
suspect  that at the beginning but after i heard the menu music of empire earth without seeing the menu itself,i realized that the game is running smoothly but the monitor isn't accepting it somehow!!anyway,i have a newer 17' monitor  ,so i tried to run the game on it..
and surprisingly ,the game worked just fine and everything was alright!!....i encountered the same
problem with Rise of Nations but some other games
like warrior kings battles,global operations,need for
speed unleashed..worked fine on the old monitor...!!!

[Raptor]

Perhaps it was due to the resolution these programs were set to by default?