Computer will not boot. please help?

Hi. My comp won't boot up at all. All it does is beep. Nothing shows up on moniter at al. It was working fine this morning..then went i restart it went weird. Startup was really slow. and my task bar was not showing..no start icon etc. just a blue bar! then i press reset thinking it froze and now it wont load.... show more Hi. My comp won't boot up at all. All it does is beep. Nothing shows up on moniter at al. It was working fine this morning..then went i restart it went weird. Startup was really slow. and my task bar was not showing..no start icon etc. just a blue bar! then i press reset thinking it froze and now it wont load. just beeeeeeep! :@ driving me mad lol. please help :-S
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