clips not playing

[coolhandloop]

hi was ive just loaded my decks but when i click on clips nothing happens.this is the second time this has happened .the last time i had to redrag and drop all clips again into decks and save .this is quite time consuming especially when im not sure where i have saved the clips on my hardrive. im using a western digital my book 250gb.has this happened to anybody else and if so is there an easier solution than finding all the clips again?

thanks

toshiba m70 1.73
2gb ram
win xp home
clips stored on wd mybook 7200rpm usb2.0

[gdlt]

Maybe the drive letter is changed?