yeah i am, i'm using a Dell SE198WFP though and all is good.
When you turn on your ps3 hold your finger over the power button untill it beeps twice to resest the display settings to default,
If that doesnt work make sure your cable isn't dodgey or anything, try it on another monitor if possible,
And if none of them work your monitor is probably not HDCP compliant, meaning you will either have to buy this gay adaptor thing which i found out cost the same price as my monitor i bought because i had the HDCP problem with my old one!
goodluck, hopefully you don't have to get a new one, if you do and don't want to spend too much i reccomend a Dell SE198WFP, 19 inch wide, good quality and only $250 AUD.
hope i helped