Thanks all....
I kind of knew it was a Grooveshark problem, because the site can be buggy...
I was just checking if anyone had problems with the Grooveshark song bars here - or it was just a problem with my computer.
Now, I know it's not my computer.
Grooveshark is still a good way of posting music, although it can ''bug out'' every once in a while.
Thanks again everyone for replying...