Hi Mary!
Try this (assuming you are on Windows system)....
When that drive boots up again and is labeled on G....
Go to:
Control Panel > Performance and Maintenance > Adminstrative Tools
Double click on Computer Management
Click on Disk Management
Now you will have a listing of the drives your computer sees.
Right click on the G drive
Change Drive Letters and Paths
Click on Change
Enter the letter "F" or whatever you want it changed to
Viola -that should do it
