I did a very very stupid thing day before yesterday. My primary partition on which I had Windows installed ran out of space (although I allocated 5GB !) and I had to resize the partition. I used Partition Magic only to find out on rebooting that it screwed up my partition table. I ran scandisk from the Windows 98 bootdisk only to have it corrupt my FAT totally by replacing from a corrupted second back-up FAT or so I think.
So it all came down to me having to format C: 
and to re-install everything. I made a mental note never to mess with partitions (that is the 37th time!).
Well, so today’s lesson for everyone is “DO NOT MESS WITH PARTITIONS!”