The HDD light *might* be false lead, try unplugging it and holding in the power button for a bit (about 30 seconds). If the light goes away and doesn't come back on, there's an issue with the PSU (which is most likely), motherboard is a distant second on likely chances.
Personally I got a couple of extra fans mounted on the side of my PC-A05B, and that's been more than sufficiant to cope with an 8800GT, I've heard the fan kick in ONCE, after 12 hours of gaming non-stop. During more normal use, I don't hear anything at all from my machine.
For reference, the...
You know, just set fire to your PC, you'd be saving so much time and effort trying to fix it later on! :)
More seriously though, don't use your root administrator account, it's just not worth it. You want somewhere to dump files, use your desktop! If it makes you feel better, you can put a...
You do realise that sometimes turning "off" a firewall can still leave restrictions in place.
My suggestion is to get a proper firewall program and turn Windows Firewall off (Comdo Firewall Pro works on Vista 64bit, even if it is a bit verbose), more importantly it's free.
If you don't...
One way to eliminate whether it's the disc or not, since you obviously have a working PC somewhere, put the disc in and try to access the path laid out in error message. If you can happily copy that file across, then you can be *fairly* certain it's not a disc read error.
If you can copy...
Personally, I'd point the finger at the recycle bin gadget. Having had a think about this problem, it seems to me that a natural place to keep extra recovery information would be the RAM.
Perhaps it's keeping some kind of bare bones image of the files you're deleting and presenting you with...
Are you sure you've removed the CPU heatsink and not say, the Northbridge heatsink? Also if you've got a typical off the shelf system, you may just see a lot of bumpy white-ish material spread completely over the entire CPU area.
Or you could just Google the filename and find out that it's just a copy of your XP system prior to installing Vista.
http://www.eggheadcafe.com/software/aspnet/28939510/-bootsectbak.aspx
Just delete the file, if you don't have the permissions to do so, try doing it via Safe Mode, or if...
I'm aiming for a mild overclock on the chip, the cooler I bought (not on that list) was a Thermaltake Big Typhoon so it should be sufficiant for th ejob.
Swapped on the RAM because it was a £40 (~$70) price tag difference and I need Windows XP for work, I have a couple of apps that definately...
Ok, I caved!
Replaced the motherboard with an aBit IP-35 and upgraded the card to an XFX 8800GT Alpha Dog (heaven help me if I need to RMA it, but it was actually in stock!). Also swapped the ram for 4 x 1GB sticks to save a little cash.