Samsung YP-K3 MP3 Player "stop phone saying upgrading" Questions

...phone, all I get is 'the device cannot be connected because another programme is currently using it'. Any help would be much appreciated!! i had the problem with my samsung yp-k3 where it would say ...

...I downloaded some upgrades from Creative. When I was downloading the firmware upgrade the process stopped and displayed the message "The device is not connected to your computer." Now the mp3

...has a square on the top left corner.the volume buttons are in the left side. my mp3 suddenly just stop playing i couldnt hear any thing through the head phones so i tried the speaker and nothing ...

...bought my Mp3 and just got it today, 4gb. I tried uploading 3.5gb of music onto it at once, and it stopped half way.. When I go to music on my Mp3 is only showed half of it.. So I tried to deleting ...