Slow laptop but not desktop

Hello there, My problem is this, After being online for say 10 minues my browser becomes really slow and non responsive and the only way can resolve it is too switch the laptop off completely and restart it but then the same happens again (10 mins or so usage then really slow) i have two desktops in the house that run off the same wireless router and they dont get the same prolem they tend to work ok, im not computer literat but im sure its not a router problem as my 2 desktops work ok. Any ideas Regards In Advance Stuart

Take a read through this and then start a fresh thread in this forum and post accordingly. Please don't forget to include a brief description of your problem, and somebody will be along as soon as.
Helpers look for posts with zero replies which is why you need to start afresh and why i'll lock this one.