PC trouble please help me out!!!!!

[newbie101]

hi i have a compac presario and my pc will not send any image to my monitor and i have not be on it for quite awhile is it because of the dust? when i plug the monitor into the pc.. all it says is no image and then it turns off can someone help me out here? if you can it would be really awesome!!
i opened up my pc and i used this dust sprayer to spray out all the dust, and i didnt even tounch anything in the pc, and now it doesnt turn on, if u know anything that can help me out send me a message or somthing i need help! =) please lol!! desperite

[Alan]

Welcome to PC SupportForums newbie101!
As a general guide to posting a question, please read the post at the top of the Questions forum marked 'Please Read This Before Posting A Question'

The first thing that springs to mind is check your graphics card. The second is, is there any lights at all on your pc when you try to start it up?

Post back, with the info.