I know there are several threads about computers not recognizing the Fuze, but nothing seems to work for me.

I have tried every possible way of fixing it but I've not been successful.

I have like 3 months with my Fuze, I had it replaced because the other Fuze before this one suddenly stopped being recognized by the computer and all my songs got deleted. There was no way that I could sync any more music in it. 

Now this "new" Fuze that I have is not recognized by any computer I plug it to. I've used two different USB cables, three different computers: Windows Vista, Win2000 and Win98, many different USB outlets, and it still won't work. The only thing it does is charge the battery. 

I have Windows Media Player 11, I've always used it to sync music in my Fuze since the disk that came with it couldn't install Rhapsody in Windows Vista.

I've been only able to put music in it by using a micro-SD card, but my MP3 player hasn't worked. I've tried everything I've found here. I downloaded the hotfixes in the support page, I've switched to MTP and MSC mode and auto-detect mode and none of them work. I reset it, and forced the MTP (i think) by switching on hold and pressing the rewind button; nothing works. 

Is there any other way I can make my computer recognize it? Or should I just replace it again?

I've read that some tried formatting the player, but I don't want to take the risk because it will erase my music and then I won't be able to sync anymore. 

HEELLLP!!