Originally posted by Sandwich
Usually I run across them at work, you know the kind... the boss says to go to this site, see if what they offer businesses/websites is something we can use, and if so, implement it. The site then turns out to be a horrid maze of nested tables, font tags, and other assorted IE-friendly paraphenalia.
Bear in mind, tho, that you
need to nest HTML tags - otherwise it's not standards compliant (HTML4.1 is an XML subset, so you need to correct markup syntax to create a DOM tree) - technically, the browser shouln't display anything that doesn't use solely nested tags.... but seeing as it's not yet standardized (next standard forces browsers to reject non-well formd markup, i think), mosdt browsers rdiosplay dodgy html (etc) rather than look broken.
Oh, and the siren is possibly(as has been suggested) a heat warning from the motherboard.... I get it a fair bit, natch* I'd suggest checking the BIOS settings, seeing if there is a heat alarm setup - it could be an overall hear thing - maybe your old video card was running hot.
Or, as has just occured to me, it could be a PSU problem - I had that a few months back, my old PSU was fluctating wildly in (I think the +5 -5v range or thereabout) voltage for certain levels, which left me Pc none-too-chuffed.
*actually, I only get it when I have 2 CD drives installed in me machine, cos the ventialaitons fecked then.... for a while I only had a CD-R, and the temperature never went above 60 deg - but I added a DVD-RW recently, which has taken it baken in squealy-squeal territory.