[dba-Tech] Stupid USB stick

I have a notebook with a 250GB USB hard disk, which until this morning was
known as drive e:\. I also have a memory stick, which I decided to insert.
It bumped the big disk to drive f:\ and claimed drive e:\ for itself. This
screwed up many things. Even after removing the stick, I cannot make the big
disk reclaim its rightful place as drive e:\.

Is there a way to force a device to a specific drive letter and keep it
there? Ideally I would like the big disk to remain as drive e:\ at all times
and the memory stick to become drive f:\.

If it matters, I'm running Vista with a service pack.

Thanks,
Arthur