im having same trouble on a mac as well..click and the meter runs on for about 1/2 an inch.....
tried 5 different browsers all the same....thought it was my wireless mouse so bought a new one ( 60 quid ffs ) and still no different,ive been robbed :( lol
guess that's me finished here then,shame cos i really enjoyed playing here,i guess seeing as i haven't spent a penny here for years WGT will be glad to see the back of me...
ill shut the door on the way out :)