I try to put the sandisk on the computer & it wont show anything, what should i do?

mine is doing the same. i have a SanDisk 4GB mp3 video player & mines went dead too and it will show it charging for a few seconds then it will just stop & it will just show the connected sign. try holding the power button for 15 to 20 seconds. maybe that'll work

try keying in the address of ur removable disk directly onto ur address bar. if not change ur usb port and try again.

when you plug it to usb cord and the computer then you can "reformat" that is the only way to remove music...you need a computer, don't use Vista it is not compatible with anything yet...
use windows xp and when you plug in your mp3 player m250 it will ask you which program to choose from to open your files on the mp3 disk...its easy...

Should show up in "My Computer" as a removable drive with letter designator. Then it is simply a matter of drag and drop to copy files using the mouse. If XP doesn't recognize the drive, put it in another USB port, and or try it on another computer. If it doesn't show up then, take it back to the store.

it doesnt let you do anything after it

try going on to sandisk website, then download the new software
for your player, update then hook up the player to the computer!

I don't think that the sansa e250 supports sdhc cards these cards 4gb and up are only compatible with newer electronics

try reseting it to factory settings. in other words put it into recovery mode. to do this simply plug it into your computer, then push the hold button down so the orange is showing. then push and hold the record button on the side of it and push and hold the power button. if you do this correctly it should work. heres a link to the sansa forums just in case http://forums.sandisk.com/sansa/board?board.id=e200

best of luck friend! : ) dont give up!

try completely dumping the mp3 player and starting over

Well, i'm having problems with my Sansa c140 also, but with this problem I think I can help, hook your mp3 player into your computer, than delete all the songs, and simply put them all back on, and if that doesn't work, than repost.