La Cie External Hard Drive 160 gig. My Lacie is connected to an imac g4 and is suddenly making

Question

My Lacie is connected to an imac g4 and is suddenly making weird clicking noises and at times hangs up my computer with the ever spinning ball. I am wondering if it is dying on me or maybe it is another problem. It is connected by firewire to the imac. Thank you for any information that can help me solve this problem. Haven't used my Hard drive for a few months and turned it on today and get the blinking clicking sound described in the last post. icon wont show up on desktop