unable to switch to recovery mode

my SANSA E280 player  gets  a message:

"Load main image failed

 switch to recovery mode "

Unable to connect to the PC 

Kindly help 

This should help:

http://forums.sandisk.com/t5/All-other-MP3-players/LOAD-MAIN-IMAGE-FAILED-SWITCH-TO-RECOVERY-MODE-SANSA-E260/m-p/268547/highlight/true#M16887