Hi i know this is a long shot but hey I'll just post it out there and see what happens.
I have a laptop that has been behaving weird for about 2 months - initially when we have had browsers with many tabs open and we standby - wake - standby - wake for 1 - 2 weeks it will give BSOD (not sure which codes sorry).
At that time complete PC backup is fine.
But now when i complete PC image backup it will stop at exactly 86GB (there is 89GB) every time. System will freeze. I dont have cd to run memtest so i swapped my 2 ram modules and insert only one at a time. Exactly the same. I dont believe it is my external HDD as i have since backed the entire system as individual files. I thought about to use third party backup program but hey is there any use if i can only restore it to badness ;p
There was once I got to BSOD and it says
"Kernel Data Inpage Error"
code is 0x0000007A
offending module is MSRPC.sys
more about my system
Dell XPS 1645 laptop
Win 7 Home Premium 64
OCZ vertex 2 SSD 120GB