Oh hai.
I've been having some problems with my CS:S.
I will keep it short.
While playing the FPS drops significantly.
I'm talking +/- 9 fps.
What can I do?
Changing resolution doesn't help.
It used to run fine on my laptop, this has been a problem for the last few weeks.
Formatted the laptop last week
Disabled quite a few services which could slow it down.
Obviously no viruses/spyware
Installed latest graphic driver