Screen savers

[JERRY WHITMIRE]

Hi my screen savers will not work like they should some not all.

i am using Fedora core 3 and Fedora core 3 test 3 I have XP2200 chip set to 
266 mhz and  256 mb of 2700/333 mhz ram set to 333 mhz

I have a video card with 16 mb of ram. the cpu and video card has worked 
with the screen savers before i did a mother board change to an asus  
a7v8x-x. and did a fresh install and up2date on the Fedora core 3 on the 
Fedora core 3 test 3 was a pick the rpm i wanted to use on it.
When it is set to come on the screen just goes black it does not go to the 
sleep mode  .namely the ones in the [ open gl or if it has a lot of movement 
to it ]  but if it comes on set in random they seem to work right or if i 
put them on the test mode they work but use a lot of my cpu power up to 
about 60%
is this because i only have 256mb of ram ?  i had 512 mb of pc 2100/266 mhz 
ram before. Am not sure what is going on here.[ have second email to follow 
this one]
Any help would be welcomed.  Thanks

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