I just got mine e300 today. At first, I faced the same problem with yours. I couldn't connect my e300 to my computer. Only two options available when I connect via usb to my pc. 01- Charge & Play; 02- Charge Only.
At last, I plugged the mini-usb cable harder and deeper to my e300. And 'dan dang', three option is now available.
01-Charge & Connect
02-Charge & Play
03-Charge Only
Select '01-Charge & Connect' to connect to your pc.
Hope these help. Good luck ![]()
Peace
I just bought a Iriver E300 not long ago and I plug in my USB cable to
the computer but the power and data option doesn't show up. I tried it with my laptop as well and same thing happens

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