Thank you for the feed back :D! & yeah that's a weird glitch! On my computer it functions perfectly but I've had some friends also tell me the same thing happens with the power bar. I think it's something to do with the multiplier/timer I have in place, so I'll give it a look and try to fix it! Thank you :D
It's not a problem! ^_^
Ah, yeah, it can be quite a nuisance when a bug appears only on the systems of other people, and not on one's own! But fair enough!
At a guess, could it be that you're not applying the time between frames when calculating the increase to apply in a given frame? That might account for the bar filling at different rates on different machines.