One of my important docx files seems to have morphed into another type, which I can't open. The icon in Windows Explorer has changed to a blank sheet and the file type is 'Windows Shell Common... (can't read the rest). Anyone know what's happened? All my other docx files are fine.
Dell Studio 15 with Win7 64bit and 4GB RAM
VM 50 Mbps
Advent laptop/Dell Inspiron 6000
Netgear 2200 via BT line (8Mbs).
BT Option 3
IE8 and OE6