It seems that this is a common problem. I, too, am experiencing the same
kind of problem on my Dell Dimension 8400 (6-mos old). I have seen this
problem on several newsgroups/forums but nobody has an answer yet. Dell is
trying to come up with something since the computer is still in warranty,
but so far nothing has helped.
If I come up with something I will pass the info along to this newsgroup.

"jmo" <jmo@discussions.microsoft.com> wrote in message
news68DE436-AF37-446D-96C9-15610CB11BA9@microsoft.com...
>I have a Philips PSA232/17 MP3 player that I am trying to hook up to my
> eMachines T2858 system running Windows XP. Problem is, when I plug it in,
> Windows detects a MTP - Windows Portable Device but does not detect a
> flash
> drive. I have called Philips and they said that it must also be detected
> as a
> drive in explorer and recomended that I try it on another system. I did,
> and
> it worked on two different systems (another eMachine similar to mine and a
> Dell of unknow type both running XP) I have read many of the other posts
> and
> have tried the following...
>
> Upgrade XP to SP2 - still didn't work
>
> Tried to update Standard Enhanced PCI to USB Host Controller
> (USB 2.0 to my understanding)
> -Microsoft Upgrade said that the driver was current and did not need
> updating
>
> Tried to update USB Mass Storage Device
> -Microsoft Upgrade said that the driver was current and did not need
> updating
>
> Unistalled all USB devices (controllers and hubs) and then plug in MP3
> player
> -System reinstalled all USB controllers and hubs and found MTP -
> Windows Portable Device but still no drive.
>
> Changed drive letters on CD/DVD drive and 4 mapped? card reader drives to
> V,W,X,Y,and Z to remove potential conflict with flash drive.
> -Same thinng, MTP - Windows Portable Device
>
> I am complete baffled here. I want to just take this MP3 player back but
> since it works on other systems I am not convinced that a different MP3
> player would be any different.
>
> Anyone have any ideas???
>
> Thanks,
> Justin
>