Does anyone know ... wtf up with this Pc?

[beaker]

Its dead weird and prolly very simple but its peckin my head

Reet, i can open some threads and not others and on the ones i can open i can only read say half of the msgs posted and then its sticks totally and wont move or 'back' refresh ner newt Ya have to log right off the internet and then frig about loggin back in an sheet only to click on somat else and the same thing happens

Its only on the pc's at work, my home ones bob on and it doesnt matter if i use ie or mozzilla its the same Its been happening for about 3 weeks too

Any ideas anyone please before i smash them all up