im really new in using bitcoin... so here's what happened... I have a friend in malaysia whom I do business with... and he sends me payment thru bitcoin... so last sunday he was supposed to send me a payment... so i opened up my bitcoin wallet and copy pasted the address to our facebook conversation...so when my friend showed me the confirmation to my surprise the address seems different...so i checked and I was right the address was different... so when i went back i noticed that the address is correct on my bitcoin website but whenever i pasted it a different address shows up.... can i post some screenshots here? so you can see what I mean...

I guess it was a malware attack... Can anyone help me? you can post youre email address so i can send the screenshots...