When I am surfing some websites are causing my monitor to buzz.  It's high pitched and it's irritating as heck.  Anyone know what's causing this?  Is my monitor about to die?  Any help would be greatly appreciated.
Some specs:
512mb @ 400Mhz DDR
P4 2.4
Epox 4BDA
Leadtek Ti4600
19" Samsung 900nf
Using BNC Cables
			
			Some specs:
512mb @ 400Mhz DDR
P4 2.4
Epox 4BDA
Leadtek Ti4600
19" Samsung 900nf
Using BNC Cables
				
		
			