Work PC gone mad!

Hey Guys,having a bit of an odd one today with my work PC.firstly, if writing anything on a forum its moving all of my spacing and making it look as tho ive written everything on one line.the other thing, every page I open, no matter if its a new page, new website, or refreshing a page, I get a message window popping up saying 'Scripts are usually safe, do you want to allow scripts to run?'if I click yes nothing happens, ive been repeatedly clicking that option and getting nowhere, so I click no and then it opens the page, but its doing this every time, even now to post this thread, which no doubt looks like its been written all on one line again.anyone able to offer any help or assistance.Cheers
 
I considered getting my work boots out of the van and treating the base unit to a nice bit of TLC from the toe caps!!