Benchmark: M45-S355

Hey everybody I'm new here and my computer knowledge if fairly limited.

I have a satellite M45-S355 specs are:
1.86ghz Pentium M 750
1GB DDR
100GB HD 5400RPM
GMA900
915GM/GMS chipset

I like to play counter-strike but when I get into firefights I get maybe 25fps, I've tried all the console tweaks and such but nothing seems to make a big difference.

My friends both have dells with half my ram and 1.6 Pentium M and they seem to run it much better then I do.

It seems as though my fps jumps alot sometimes in the same situation I can get 30fps and in the same situation another time I'll get 10fps. Could this be because my GMA900 is dynimically allocating the shared memory making the memory going to the video card change frequently so making my fps inconsistent?

I tried to set the shared memeory to the onboard card to the max of 128MB through the BIOS but apparently thats not an option.

So last night I took a benchmark using 3DMark05, and I'm not sure if my results were good or bad.
On 1280x800 my 3D markscore was 142 I forgot my CPU score.
On 640x480 my 3D markscore was 272 and my CPU score was 1712.

I'm not sure if these are the numbers I should be getting. But the thing I really wanted to fix was the inconsistancy of FPS in the same situation. I usually run OpenGL but found Direct3D runs a little bit better which is wierd.

So yup to some it up I want to get rid of FPS inconsistancy and increase FPS.

edit: I just went into counter-strike and before i play the game I'm allocating 10MB of memory to video. Then I started the game, went into a server and alt-tabed out and checked it and now I'm allocating 28MB to video memory. There must be a way to change it, Why won't it allocate all 128MB.

Thanks for the help,
Chris

its 1.6

I just reformated yesterday and I run a lot better. As in almost a constant 80-100fps. Untill about 15 minutes in and then FPS starts to drop to the 20's, 30's, and 40's. I'm begning the think that it must be an overheating problem, not sure though. But it seems performance takes a big hit as my computer heats up. Is there a way I may be able to fix this?

Also sometimes I will be able to get a max of 100fps and sometimes it will be 60fps. I have no idea why but its random. I have fps_max set to 101 and such but I don't know why sometimesm the max is 100 and other times max is 60.

thanks,
Chris

Also I just ran a program and after 15 minutes of CS about my computer heated up to 100 degrees Celcius...