Originally posted by mhcampboy:
Am doing it right now. Just now I checked my broadband speed.
Then got link to tell me to tweak it now.
What izzit exactly? Will it change my system??

Scared already me...

There really isn't much thats going to happen. Your computer won't spoil, your documents still there, you system remains. However, tweaking of a program or in ur chase, your network, will lead to them not able to work properly if not done right.
Since you asked what tweaking is, i assumed you did not know how to do it or understand how it work, whatever thing it is you want to tweak. So i suggest you better get enough info about it first, fully understand it, before doing things to your network.